Actually I would say WoTC wants to introduce more people to the actual game of TTRPG etc, rather than the ruleset. So it makes total sense to all BG3 some room to make it more appealing to the casual base. That is more people that can be brought into the D&D playerbase overall, where they can than deal with whatever homebrew 5E ruleset some DM wants, if even that. A lot of DMs stay with 2e and 3e.
What makes this kind of argument ridiculous every time it's used is the implied but completely unproven assumption that whatever they are doing should work better on that type of audience.