Another angle to this that has not been mentioned is how this looks to other recruits. Could there be a snowball effect.
I can truly understand why this upsets the coaching staff so much and how they could respond badly. I mean, did they sell to Cade McNamara that they were going to have this 5* tackle coming to protect him. Now, I realize Cade's prob bought in and on campus, but man, this could be a promise from Iowa's staff that they cannot hold.
Then to think of the planning that the staff prob did around this recruit, again, I can understand if they are miffed about it and if things get a bit tense.