A more salient point is that among the four guys you listed (Crosby, Stamkos, Hughes, Bedard), only Crosby is a true center. Stamkos has played the best years of his career at wing, Hughes played mostly wing last season, and Bedard is already getting questions about if he should move to wing because he's quite poor defensively in addition to being small.
I actually like Hagens' chances to stick at center more than Stamkos/Hughes/Bedard because he's much more committed defensively than any of those guys, but I absolutely think it's a fair question to ask. There are almost zero 5'10" centers in the league. It's like, Crosby, Point, end of list.