This has nothing to do with stats. Why are you guys' basing it off of stats. This has to do with talent and I really don't see him becoming a all-star goaler. Poulin lacks lateral movement and speed which are important parts to goaltending. He does have very good positioning which is the reason why he was drafted and has pretty good reflexes. As for Reimer he might not have that good of positioning, but he doesn't have those crucial weaknesses that Poulin has. He's still going to be pretty good, maybe Nabokov; 1B/1C good, but nothing more.
For a guy who claims to know so much about the goaltending position, you don't seem to understand the link between lateral movement skills and positional play. In the 25 plus years I have played and coached the goaltending position I have yet to come across a strong postional goaltender who didn't have very good to outstanding lateral movement skills.
Positional play is comprised of three components - angle, squareness and depth selection, in order of importance. Being centered or "on angle" is the most essential component of positional play, and it is lateral movement, either on one's feet, or in a down position that dictates whether the goaltender is on angle. Forward and backward movement allows the goaltender to alter their depth selection. Since the bulk of a goaltender's coverage comes from being on angle, and the vast majority of a strong positional goaltender's movements are lateral in nature, it is not hard to understand the link between lateral movement skills and positional play.
Yet, you state that Poulin is a strong positional goaltender even though he has low level lateral movement skills. That's simply not possible.
I've watched Poulin numerous times over his career, before he played in the Q, during his Q days, and as a professional. He has tremendous physical abilities. He's an outstanding athlete which top notch technical skills, including very good goalie-specific skating and recovery skills.
The downfall of his performance, much like MA Fleury, has always been the cognitive and mental components of the position. It's taken him a while for him to learn how to read plays properly, to make quick and accurate decisions, and to develop the patience required to be successful in the modern game.
Similarly, the mental part of his performance - confidence, concentration, the ability to handle pressure, the ability to prepare consistently, and resiliency, has taken a while to develop (as it does in most young goaltenders) but he's made tremendous strides in that area. That, in my opinion, is why Poulin has been able to take his game to another level at the pro level.
But, make no mistake, he is a very strong positional goaltender, and that positional game is driven by his explosive lateral movement skills.