It wasn't a "shove" as I understand the term. A shove is an act that is strong enough to knock you completely off stride almost to the point of falling down. It was a push, and a very slight one at that. The problem was that the 'push' occurred just as Baldwin was about to cut for the corner and in a susceptible position. It was just enough to knock him off stride. It was a bad play call because it was a timing play where every thing had to go just right for the ball and receiver to be in the same place at the same time. There was no margin for error. He stumbles a bit coming out of his break and it's over. You generally don't call those types of plays on 4th down because they don't allow for the qb to improvise, especially a QB like Russell, where improvisation is his long suit. If we were forced to have gone for it, which we were not, I would have liked to have seen some sort of run/pass option.
If that was the best play we could come up with on 4th and 2, then it makes it an even worse decision to go for it. It's one thing if the coaches see something obvious that they know will work and have a good Plan B if it doesn't, but that one was an all or nothing shot in a tight coverage situation.