Reilly makes 720K through next year. Perfect depth D on a team with playoff aspirations...so I Ask you...why did Minnesota trade a player who cost very little, could provide depth during a deep playoff run? In other words....he brought so little to Minnesota that they jettisoned him even though there was no need. Another worthless trade.
If we are looking glass-half-full, I read an article on The Athletic written by a reporter covering the Wild. Essentially, the Wild feel they have other young D, and basically wanted to give Reilly a chance elsewhere since it wasn't going to be with them. Quote from Chuck Fletcher:
“I think at some point it's important to do the right thing (for Reilly). If it's not going to work here, we needed to give him a chance to get his career going.”
Now your general point is still valid, if Reilly were a really super-duper prospect I'm sure Minnesota would wait it out and their noble approach to Reilly's career development is probably tinged with the idea that they'd give him a shot elsewhere but don't expect him to amount to anything.
As Hab fans we just watch this wheel of 6th-7th-8thD coming and going and hard to imagine that this guy will hit where Barberio, Davidson, Nesterov, Redmond, Benn, Schlemko, Morrow, Streit, Alzner, and Jerabek all failed. But at least I'd like to see this guy goddamn play. I don't need to see any more of Schlemko, Benn, and Alzner to know that they are all useless and should all be in a pressbox rotation.