There's no way they are not aware of this already. They are literally working with WotC, right? This and the other obvious deviations from the rules (weird reaction system, potions as bonus actions for example) must be deliberate. Frankly, the BG games let characters attack and cast spells in the same turn, so this wouldn't be the first time a DnD game bulldozes over the action economy of the PnP game. And honestly, that completely unbalanced bastardization of the rules (cast 'n attack) is one of the most enjoyable things about the BG games - it led to the godlike fighter/mage builds.
Some other subtle things like ladders costing no movement are probably just works in progress.
I'm concerned about things like the player seeing the enemies' exact current and max health and their exact hit chance, which is a deviation from the "information economy" of the PnP game. The HP values might just be a WIP thing as well - it would be trivial to adjust the HP labels to only show "badly injured" etc.
