Let's get specific, in fact. Of course we all (or many of us, anyway) would like to see more out-and-out love scenes. So don't take this as a rejection of those, not at all. Bring them on.
But what I think is most acutely absent from the movie are scenes of lesser casual physical intimacy. They're either intense -- TS1 and 2, reunion -- or they're just talking BUT NOT TOUCHING. Once they become lovers, the only other time they touch that I can think of is when Jack strokes Ennis' cheek after the Earl story. But I could use a lot more of that, especially under happier conditions.
Personally, on this issue I think Ang went way overboard with his restraint. Or would that be, Ang went way underboard?