Our TE play has been very good, IMO. Watson, I believe, has the highest catch percentage (% of targets that are completed) in the NFL. He's not going to catch 60 balls for 650 because our WR's are so dominant. His main job is to block, which has been much improved from previous years. Kyle Brady is a dominant blocker who is really only being asked to block and not catch balls except for a play or two per game.
As for "do we miss Graham", no- not as a receiver. You do realize Daniel Graham was not a huge part in the passing game (as a receiver) even when our WR's were average, right? His way of helping out would be more with his blocking, which we are fine at, than his receiving. He really wouldn't add much to this team as a receiver or as a player considering the job Brady has done. No way I'd want him back on the team if you factor in his salary. Good, solid TE who had his moments here...but we are doing "pretty well" without him and that money can be used much better elsewhere.
I don't see anything to complain about as far as the passing game goes. We have too many weapons; they aren't ALL going to post career highs. You can only have so many guys catching 5+ passes in a game.