Cool idea, not something I want Larian to spend time on before they have polished the game as is, and improved their ruleset.
I'm not saying advanced dodging animations should be the priority (there's a lot of other animation-related stuff that seems more urgent), but you need to remember that Larian's resources aren't... entirely fluid, so to speak. Working on animations will hardly impact works on the ruleset. Done by different teams.
The coding of a "dodge & block" system would involve work from coders and not just animators. However, the team on this game is huge. Surely they are working on a lot of things at once.
Fair point, but I think it's trivial - something like "if hit, display animation 1/if miss, display animation 2". Idk, I could be wrong, I'm not a coder. Seems rather simple though, unless you want something more sophisticated, like when to dodge and when to block.