This gives me a chance to do my favourite thing - sound like I know more than I do.
Overtrained rhomboids? Not so much. Over-active rhomboids, however, is a very real thing, and comes from having the classic shitty shoulder posture we've all got.
That's why I'm a fan of setting my face pull rope a little lower and pulling it to a little higher up the face (nose as opposed to throat). Trains a bit more upward rotation of the scap, which will take some of the heat off your rhomboids.
Scapular upward rotation is, in my limited experience, a missing link in most people's shoulder rehab protocol. Everyone does tons of rows and other such scapular retraction work, which is great, but it's only one piece of the puzzle.
So... yeah. It ain't all about them rhomboids, y'know. Strengthening your serratus is a must, too. The best way to do that is to juggle cats.
Lol - jokes. Do scap push ups.