Larian does not care about the franchise or the ruleset. Yes, they generated a lot of interest by pretending to make a 5E game. Swen has wanted the cache of the license for a long time. It will make a lot of money just based on reputation. This is part of the videogame industry.

This game is targeted at young stream-watchers and redditors with short attention spans and a strong preference for memes and inspirational drama over anything else (such as gameplay). The kiddies chat on streams all day and share dumb GIFs back and forth, and Larian wants their dollars. That is the gaming market right now. If you actually know anything about D&D, your money is taken for granted here, and there is no need to cater to your desire for mechanics, challenges, complexity, etc. The kiddies don't like anything with a learning curve.

Instead of thinking about how misleading the press releases were, just look at this rudimentary product as the latest cringey, "empowering" Larian game with some watered down versions of real games in it. Pretend the D&D logo is not on the game. Then the glass is 25% full!