I don't know if I support the changes OP is suggesting, but I'll concede that it does feel kind of strange that certain feats of strength take luck into account the way they do. I feel like that's more a product of the gaming nature of things rather than a flaw of BG3 itself. Like yeah, I do feel like either you're strong enough to rip the doors off a pod or you aren't. The example of Gale looking for where to apply his strength specifically feels like something closer to a crafting role, using his expertise rather than raw strength.
