Sliders are nice, but they tend to get horrifically abused.
Well, they did work in NWN 2, at least to some extent. Although, to be honest, the overall quality of animation in that game was, how shall I put this, good for its own time (and that time has gone). For example, when I made a tall Aasimar (who were already taller than average by themselves) there was a noticeable discrepancy between the character's gait and the distance she covered with a single step.
Considering that BG3 appears to be pretty heavily investing in its visuals, such an obvious gaffe will be detrimental, and will be immediately abused as a topic of countless memes.
Personally, I feel rather divided about the physique being a derivative of stats. Building a god-like supermodel body shape with CON 8 - sure, a lot of people would prefer that I suppose, rather than a more realistic plump / unhealthy thinness. On the other hand, players are the only ones who are going to look at their characters (it's not an MMO, I mean), so let them create whatever they want. Especially considering that, for a significant part of the population, "plump" = "god-like".
