I hate to say it, but dated game genre is dated. I like this type of game, but I don't think it has significant mainstream appeal to warrant a strong reaction at a large showcase. As much as the people on this forum enjoy them, there's definitely something anachronistic about isometric RPGs in 2023. The good news is that BG3 has a TTRP community, a DOS community, and a Baldur's Gate community (caveat--over two decades old). Outside of these groups and people that like narrative-driven RPGs, I don't see how the game appeals to your average gamer™.
I don't disagree that this is title unlikely to make too many millions in sales, but I really dispise a suggestion that a cRPG would be anachronistic. Why would it be anachronistic? Because it has mechanics deeper than a cow clicker? Doesn't have a battlepass or cosmetic shop? Because it doesn't have raytracing that almost no one will turn on? That it screenshot won't look quite as nice, or "movie like"?