Not talking about the cost to implement the changes, but the backlash of changing the games to pander to her needs.
And why are you being so defensive of this poorly written "opinion piece"?
SJW ask several silly things put on the games even knowing that those changes not only limit the freedom of the authors but also end up attracting no new customers.
There's always backlash for any change being made, no matter how tiny. Sometimes, not even changing anything warrants backlash. Some people already made an uproar about the new combat system. But SE changed it anyway, no? So they might as well change some other things, while going for it.
I'm not being defensive. I just want people to explain why they consider asking for changes "twisted", not just say it and call it a day. It's easy to bash SJW, but sometimes it's hard explaining why to do so (outside joining the hate bandwagon, of course). Again, you just say "very poorly" without any explanation. Maybe you prefer leaving things untouched, which is a fine complain by me, but I can't really deduce from your post. Maybe you do want some changes, not those the writer propose (and thus would again explain why you'd think they're very poorly).
I don't think swapping Cid's background or her explanation about Tifa or Yuffie would be a good thing. I do think swapping Aerith's dead for Cloud would be an interesting turn of events. The author's freedom isn't limited in any way. They can do what they want, if they listen to the suggestion, fine. If they don't, fine, too. Their liberty remains the same either way.