Kem0sabe
Arcane
Out of their release catalog, not sure any of their game system's can qualify as deep or complex. Kotor was a console rpg with simplified combat and character progression, people remember it for its deep story, NWN2's implementation of the D&D ruleset wasn't what i would call it's bigger virtue, people remember it mainly for MotB's story and characters, even tho ZoE was a huge leap in game systems compared to the previous NWN2 campaigns. Alpha protocol was yet another simplified console rpg.
And what I'm saying is, how much criticism did those games receive because of that? Answer: Not much.
Because content is king(tm) and no True Codexer(tm) has ever decreed a game "shit" because of its systems.
(exceptions granted to Roguey, Excidium, and perhaps a few others)
Speaking in terms of game system's, their best effort might have been ZoE and not New Vegas
Summoning Roguey for extra rage
True enough.