No. The reason to hire ambitious talent knowing they will leave on their schedule is to accomplish something while they are here. The Galaxy and ATLUTD did that (and ATL has yet to have anyone leave with time left on the contract). Red Bulls never won anything major but Marsch left on management's terms (which is it's own set of concerns but of a different sort which we frankly share). NYCFC had one guy quit midseason after a stalled improvement and no titles won. I'm not counting Torrent until it's official but we're discussing as if it's a given. I know that if he left for a national team job at the end of his contract and after winning a title I'd look at the situation, the club, and him much more positively and without rancor. I can't imagine that isn't true of most.No, he's right. MLS is a feeder league for bigger jobs, and that's just as true for managers who have done well as it is for players who have done well.
So yes, losing ambitious coaches who show talent is universal to any MLS club who hires them. The question is do you do that well or not and comparing NYCFC to the Galaxy or Atlanta in that respect is absurd.