Because it has nothing to do with them not having a valid contract and doesn't change that situation at all. It's a moot point.
We should let these players know that they're expected to stick around at clubs past the expiry of their contract because
@Keiran doesn't think they're starters for their clubs so it doesn't matter if they're made to work for an employer out of contract.
Nevermind any of the insurance and legal implications, none of that matters because Willian said he will play past his contract so now
@Keiran says all of the players out of contract should be made to stay beyond their contracts.
That's how ridiculous your arguments are.