How hard is it doing simple dump off passes all day, I guess he and the WR's aren't doing much
That's a ridiculous comment.
First, all pass plays require work to perfect, regardless of distance. In fact, all plays of any kind. It's all part of the offense and the need to run it as efficiently and effectively as possible.
Second, Ferguson averaged more yards per reception in 2023 than Kelce, Hockinson, LaPorta, Engram, Goedert and others.
Third, what indication do you have that he and the WR's didn't do much? Lamb had the best receiving season a Cowboy WR has ever had. Very clearly they were clicking pretty well.