I terms of legality, it's not ridiculous at all. In defamation cases malicious intent is integral. Being wrong is not the same as being malicious; if she genuinely believed herself she lacks the malicious intent behind defamation. That's just how law works, it's always more complicated than you think it is. Lawyers get paid ridiculous sums of money for a reason.  

No it's quite ridiculous as it doesn't hold up to the case in question. If the assertion is that you can't prove malice "because she believes her own lies" it doesn't hold up to the evidence presented in case. You can impeach a witness to show they are being knowingly deceptive. The best example of this is the 2016 Deposition from the UK case in which Amber lies about tipping of TMZ. She literally catches herself telling the truth in that video. So she is being knowingly deceptive. She does not believe her lies are the truth. Moreover her testimony in the VA case often contradicts her previous testimonies under oath. It's why the cross examination of Amber by Camille Vasquez was so devastating to her case. She would ask Amber a question, then show that Amber was lying with her very own words. That was the universal moment in which I saw the various lawyers live streaming the case switch from "Johnny doesn't stand a chance of winning" to "Johnny is going to win his case." 

I'm no lawyer. That said, when I can watch several lawyers make an assertion. I'll defer to their wisdom. Particularly when one of the lawyers is practicing attorney in VA. I'll take his word on the matter over a poster on the VGChartz that seems to have a contrarian take on the issue for the sake of being contrarian. 

It might've just been them testing the waters for what they can get away with, and judging by Twitter reactions, the response to her was highly negative (big surprise there), but if she's in it for 1 second, I won't be paying to see this, I don't care if they kill her off in the opening scene. Maybe if they acknowledged they done fucked it up with the whole JD situation and issued him an apology and potential film roles.

Oh, and speaking of WB fuck-ups, the whole Ezra Miller saga continues to blow up in their face and make them look worse by the day:

Nice going, WB, you fucking morons. You fired JD based on baseless accusations that have now been proven (and I mean legally, court-of-law P-R-O-V-E-N) false yet you give this guy a pass without so much as a peep after he was caught on video assaulting a woman (!), and where did that enabling get you? You're essentially harboring a fugitive who damn near cut a woman's eye off after putting a giant laceration in her head, threatened and stole from a live-in couple, threatened police after arresting him for disorderly conduct and groomed a 12-year-old (!) and ran off with her years later!

They basically have two options at this point: bury the movie or spend whatever it takes to replace him with Grant Austin. Whether that be CGIing out his face and redubbing his lines, reshoots, I don't care, they can't show his face in a millisecond of footage at this point. That would be a PR nightmare, it'd be worse than the Slender Man controversy. They're literally aiding and abetting at this point by keeping him in the film, there's no sugarcoating it. If they want to even pretend to care about moral or artistic integrity, either cut their losses (while also incurring them financially) or don't release the Flash movie at all, and WB can only wipe their hands of this debacle by doing one or the other. The minute that trailer goes live (and it's rumored to be dropping soon), they're gonna get massive amounts of backlash (maybe moreso than keeping Amber in AM2), obvious reasons.

Another way that they could save some face would be releasing a note that they won't ever hire him ever again, but since this movie is finished they are going to release as is BUT EVERY SINGLE CENT OF PROFIT WILL GO TO SOME NGO THAT DEALS WITH VICTMS OF ABUSE.

I've seem to many newspapers, reports, opinion pieces and articles basically going this way. Putting Amber as even more victim, how society protected JD only because he is a white, rich male, etc.

To me the most ludicrous post judgment claim made by Amber and her lawyers is that Johnny ran a smear campaign against her. She literally had nearly all MSM outlets smearing him. Even after she lost, they continue to do so. Most people, and I'm ashamed to say me included, believed her on her word alone in 2016. It isn't an orchestrated social media campaign against her. As the evidence of her lies spread, people taken in by her BS, became angry. Particularly actual DV victims. A lot this info has been around for a few years but most people didn't know about it. When the trial started, it spread like wildfire. I mean she's on audio admitting to making up the abuse claims because she thought Johnny was going to evict her and her friends. It's not a smear campaign when it's the truth that is the source of the vitriol.

Amber Heard releases years of therapists notes judge Penny Azcarate didn't admit because they're hearsay:
https://www.sportskeeda.com/pop-culture/news-she-will-ruin-anyone-amber-heard-therapy-notes-spark-online-backlash

And why don't they release the unadmitted Dr. Kipper/Debbie Lloyd/Jerry Judge tape where she admits to cutting his finger off while they're at it?

Furthermore:

Every day, this narcissistic, abusive drama queen is proving Dr. Curry's diagnosis right: she really is full of herself.

Amber's therapist was on her witness list and they didn't call her. Also Dr. Hughes, who they did call, reference these "therapist" notes. I put the quotes there because they A)Where written well after the fact not throughout the relationship as she implied and B)Seem to suspiciously have similar handwriting to her own....

As a matter of fact, it turns out she faked her "therapist" notes. As in, they're her own notes:

So a habitual liar who's been proven to be lying isi caught faking therapist notes? Didn't see THAT coming.