Agree, but Switch version, with touch controls and joycons, potentially could be the best way to experience Sims on consoles. Way better than using classic controller only. 

EA gave it decent initial support, FIFA, Madden, Mass Effect & Need for Speed were there in the first 4 months and Wii U sales had already tanked by that point.

FIFA and Madden are pretty much mandatory for every single console due to their license contract. They have to appear at least once on every console.

Mass Effect 3 came out at the same time ME Trilogy pack came out for the rest of the systems, and for the same price. It was an inferior offer in every way.

Need for Speed was good, but it was just another multiplat, not much efford needed to bring it to the Switch if the Vita could run it as well.

So what exactly is your argument? Wii U sales had already crashed by January 2013 (1.5 months after launch), what game from EA would have prevented that?

Isn't that the thing, though? Lack of support meant lower sales, which meant lower interest for the console, and it enters a vicious cycle. And while everyone is guilty of that (Nintendo included, they did some weird stuff with their 3rd party relations back then) the EA-Nintendo debacle was the most public case of clash, with the Origins boycott and the "unprecedented partnership" going so sour it became a meme, not helped by the anemic support they got from EA. EA were not only the first ones in jumping the ship, they threw a match to the wrech while they did so.

Pretty sure Nintendo and E.A have problems that date back beyond the Wii U if someone wanted to dig it all up.

But there wasnt a lack of launch support, Wii U launched on Nov 18 and had 37 retail games by the end of December and sales had already plummeted to sub-50k by the 2nd week of January.

It had Call of Duty, FIFA, Madden, NBA, Assassins Creed, Batman Arkham, 007, Mass Effect, Darksiders, ZombiU, Tekken, Ninja Gaiden, Warriors Orochi, Monster Hunter, Need for Speed, Lego City, Just Dance, Scribblenauts, Rabbids, Skylanders, Sonic Racing all in the launch window.

EA could have released Medal of Honor: Warfighter, Crysis 3, Dead Space 3 & Army of Two (their big games of late 2012-early 2013) and it would have made no difference, people didnt want Wii U.

Nobody outside of hardcore forum going gamers knew or cared about the "unprecedented partnership" or Origin boycott so those are irrelevent.

The problem was never the launch support, it was the support after launch that immediately dried up. If I can recall, the Vita suffered the same problem. And even if casual customers did not know about the specifics of the "unprecedented partnership" and the Origin boycott, the results of those were clear even for them: Lack of games. Again, the EA debacle was not the most important factor for the WiiU's failure, but it's not insignificant either.

I would welcome a Need for speed game, switch is still lacking in the racer department. Hopefully Grid turns out good

Launch support should hold a system up for more than 2 weeks, it dropped to sub-50k in the 2nd week of January, that is not from lack of support since early January has never been known for big releases, that's from the system itself being undesirable and no amount of EA support would have made that better.

The EA debacle is so far down the list of reasons Wii U failed that it's not even worth mentioning, every relevant thing that went wrong with Wii U came from Nintendo themselves, unappealing hardware, terrible marketing/advertising & poor 1st party support are the main culprits.