Similar comments were made about Klefbom last year, so I'm going to temper my enthusiasm. Knowing the Oilers, something bad will derail his development.
I am the biggest Klefbom fan around, bought his jersey despite his slow starts and have followed him thouroughly since the moment we drafted him. And every time I read comments about him being a undisputed #1 dman I laughed. He made a bad defensive gaff consistewntly last year, but alot of posters overlooked that because of the rest of his game (even myself at time).
Nure on the other hand I was never a fan of, I wanted to trade him (++) for another dman (Trouba) for years. I just thought he was to dumb to ever become a top 2 guy. He is solid no doubts in my mind.
This is different than Klefa imo.
But your logic is indisputable, this is not a big enough sample size . This is the Oilers after all, and developing dmen is something we have never ever done correctly.