He's essentially the same player he was last season.
Being in great shape doesn't magically make the warts and inconsistencies in his game disappear.
It's clear Tocchet does not trust him to play high leverage minutes or PK minutes. So you have a guy playing bottom-6 minutes (and some PP, which is almost negligible given how little time the 2nd unit gets) that the coach doesn't trust defensively.
So usage wise you pretty much have another Sprong but at 3M instead of 900k. Management and coaches must really believe he has another gear, or at least will eventually play a more mature and well-rounded game.