I see what you're saying but I view it quite differently. If, for example, Gordon had gone on strike to force the move to Chelsea, that would say a lot about his character as he would be aggressively attempting to swap first team football for Chelsea's bench.
If however, we had a manager like Koeman or Allardyce, who refused to play him because he is young but wouldn't let him move either in case we get injuries, I could well understand it.
Also, Kudus has been their best player in pre-season and still isn't being given a go. It's a powerplay by their manager and I can well understand the lad's frustration.