The point is really about trying to force him out of the club. He doesn't want to go and instead wants to stay and see out the contract he was promised. So the club react by putting him in a degrading and awkward position to try and force him out.
I disagree. If the club's intentions were to force him out they would have made him train with the U-21s from the start. He was given full first-team facilities during preseason and made well aware of his squad status.