I think most us us are coming from the viewpoint that if he is healthy enough to be part of the AFL competition, then he should play by the rules and honour the contract he would otherwise be under.
If he's not yet well/strong enough to re-activate his previous contract, then he isn't ready to be part of the AFL and it's system.
As I said I can understand that viewpoint. But I don't think it's fair to be critical of Clark without really having any insight into his reasons for his decision. He may have articulate that to the MFC administration- I'm not sure - but I don't think he really needs to spell it out publicly.