I agree with your overall sentiment here, but I disagree that Bowey has no future and no real trade value. Bowey is a decent bottom pairing defenseman that can chip in offensively. 17 points in 53 games from the back end, on a team that severely lacked offense, is solid production. I won't be too upset if we let him walk, but I'm on the side of maybe we should extend him for another season or two, to see if he can continue to build off of last season. If he can learn to clean up his defensive game, he could be a solid defenseman.
To be fair, Bowey is 25 and Hronek is only 22, but I do think both have room for growth.