Wylie's hard to pin down, steady improvement in the WHL, scoring at a high pace, but he's also a bit "overage", turned 20 in Nov., so even though it's his post-draft +2 season, he's three to nine months older than his peers.
The offense is a good sign in that he's probably destined to be a defensively oriented 3rd pair D-man, but if he's a good passer and decent shot from the point in that role, he'll have value. They're not going to be able to afford to pay their third pair much after they extend Sanheim and Myers, so having solid prospects as role players will help fill out the roster, Friedman, Wylie, St Ivany. Given the LHD depth coming up (York, Zamula, Kalynuk, and of course, Ginning), developing a RHD or two will help their balance.