It makes sense though. I think it is reasonable to give the choice of signing an extension with improved terms or make a move for a decent fee. You can even include a buyout clause.With this much money on the line it seems very believable to me that Lille would suggest that were he to stay and not sign an extension they would be forced to limit his playing time in order to prepare for life after him. Which is a threat and in effect a punishment.
It is ok to ask a young player to commit either to moving or signing an extension.
I don’t believe Yoro was forced to leave. It is a good move for his career; Madrid would have been to soon. At MU, he gets playtime and will be developed like our academy prospects.