The guy is 21, there are plenty of young defensemen/forwards around the NHL getting lots of ice time. If he's not ready to contribute at this level yet I would suggest he's not all that talented. Talent, or hockey skill/sense in this case, is something that you have as a natural ability. You can spend a career in the AHL, and it's not because you need it to develop or learn the system, it's because you just don't have the God given talent to play in the NHL. The guy's that do, well they seem to fit right in.
I'm not throwing the towel in on Dylan being a decent third pairing physical/enforcer type. At this point though he's not physically ready to be in that role, no real upper body strength, weak on his skates.. He's lucky whoever he dropped the gloves with the other night treated him like a kid, otherwise he would have been tossed around like a ragdoll. But for for those of you expecting something special from him, just not drinking the kool-aid.
The Rangers need to actually draft talent/skill, not try repeatedly developing it on borderline AHL / NHL players..