Much more important is the matching of 5e mechanics - shove, concentration, surface/grenades, healing, items, spells, etc. Again, homebrew mechanics changes can be done correctly while preserving balance...but again it's important to consider what effects such changes will have on other aspects of the game. And changing a single mechanic will have a vastly greater effect on gameplay than changing a single monster.
tl;dr: I don't think Larian needs to match enemy stats to the 5e Monster Manual when creating a '5e RAW' mode, which will greatly decrease the amount of work required. Gameplay mechanics are more important than NPC stats.
I agree with this, but I think that anyone who is coming to the this game from D&D is going to come in with certain expectations. The less of those expectations that are met, the less likely they will enjoy the game and recommend it to others.
People who haven’t played D&D, won’t care about the minutiae. However, D&D players are going to be tripped up by both big and small things that aren’t consistent with their expectations.
