Completely disagree. Turcotte's brand of hockey is about high speed, aggressive connectivity. His offense will come from familiarity with the speed of the NHL, learning what he can and cannot do, reading defensive structures, then applying the effort in the right direction.
He needs to learn that in the NHL, returning to the AHL only postpones that process. This isn't a pure skill player, its an effort player with a good modicum of puck skill who has produced via intelligent decision making and the volume of opportunities those smart decisions create.
I don't see any reason to send him back while his game is on the rise. If he plateaus, sure, but that just isn't the case right now. These are vital minutes for growth and he is getting them out of the way now.