If the CRPG is based on tabletop rules, those tabletop rules are fundamental to the discussion.
They have never been before for any other D&D based game before this one, so I don't see how they suddenly are relevant now.
You don't think the 2e rules were relevant to BG or BG2? Or that 3/3.5 were relevant to NWN and NWN2? I can only politely say that you are very very wrong.
