I don't think anyone says its unsurpassed just that it is detailed. In fact I don;t think i'd even say anyone is raving - this is probably one of the most self critical publishers forums you'll find
But yeah it is for MP - i'd take the opposite view - why the heck do I want to play against a lump of meta with pre programmed responses, far more fun to play against a human - the interaction from the human perspective is as little or as much as you want - it is not by any stretch an fps style chat - far from it in fact
My own view is this game sucks in SP and i've seen no comments that would suggest otherwise. But you'd have to try the MP out to really understand it's attraction. I understand it's not of interest but it is where the game sings.
Tals