My own view is that Murray isn't a likely prospect, so in that sense I agree with you.Is murray 21 now? So he'll be 23 when he can play again. He is too far back imo.
Swanny was just a freak 1/100.
Still, he doesn't need to turn into Swan to make an AFL career for himself. Murray might well be 22 years-old when/if he returns to the game, which would make him a reasonably young prospect with senior footy under his belt. He could possibly make a go of things, if he has enough determination to add something more than pace to his game.