Bullsh!t.
Would the Roosters have signed Fittler again? Did Canberra sign Smith and are other clubs chasing him?
If they are a better player than anything else you have then it makes sense to sign them, simple as that.
You can't expect loyalty when you show none. The club made a decision in their best interests on the Peach, 1 I disagree with, and it is only fair that players do the same. If the club had gone above abd beyond normal things for the player then maybe they could expect something back but what has the club done for Stoss other than bring him up when their first choice got injured.