TL;DR: 2020 WotC is trash and they are - once again - running the Realm's world lore into the ground... seems legit!
Seriously, though, do you KNOW the game's story was approved by Wizards, or do you guess? I mean, it's possible Larian is building new canon here, but who is to tell whether or not all the details have been signed off on?
I know how copyright works. If you want a good idea of the constraints they put on content creators, you can read through the Dragonlance lawsuit, to see what kind of creative control they keep over their products. Hoeg Law on YouTube did a pretty good breakdown of it. I can dig up the link if you're interested.
Are they breaking the system? Probably. I really haven't been very impressed with how they've handled it over the years, and I do miss the TSR days. They are, however, the final arbiters, and whether I'm down or not, I can't, in good conscience, lay that at Larian's feet. They proposed what they wanted to do, and WotC said ok, so if it's well and truly broken, then it's well and truly on WotC/Hasbro.
