I didn't watched the match, so cannot disagree with you. Just that before the match, Gael was favourite because of the surface. If it was in fast/medium HC, I would give a bit of the edge to James...
just to give you an idea of how much this match was one sided; Monfils's odds were around 1.58 right before the match only to stay constantly at 1.40 or below during the entire first set (apart from the break). James was just too erratic to trouble Monfils and was playing without a 1st serve to back up his UEs.
One has to appreciate his efforts though. Hope he can have a decent run at US open and then call it a career.