Even if he doesn't make the team, he can still push guys like Meyers and Pavel in camp for the 4C spot. With a lack of depth and prospects, the Avs tend to use PTO's in this way.
Benefits the player too, because even if they don't make the team, other teams are watching their camps and may have an opening for them.
If he's still a good skater that plays a physical two way game though, he's got a decent shot at making the team, because that kind of player can forecheck the way Bednar wants while still being responsible defensively.