We have to acknowledge that every human is different and needs different training to reach their peak. Even then, that peak is going to something different for every human. In the case of hockey players, not everyone is going to be able to skate circles around other players, or wow us with their speed. Not ever player will have incredible talent in their ability to shoot the puck, passing and scoring. Not every player will have great hockey IQ. Certainly very few if any, have all of these. It's a team sport and the idea is to put players together that compliment one another to accomplish the goal of being a great team. Laine at barely 20 has accomplished most of this already.
He may never be a great skater, not that I think he will stop trying to be one. But to compare him to more compact players at this age is silly. A more densely muscled, or shorter player is going to look (and probably actually be) much faster and agile on the ice than a skinny 6'5" kid.
Again, let's remember what bambi looked like out there until he was what, 23? It's just the way that some kids progress regarding strength and stability. Can anyone find an example of an 19 year old 6'5" kid that was a great skater in the NHL?
If Laine isn't a much better skater in 3 years, I'll join the disappointed. Until then I'll just realize that he's very young and tall and lanky. But he's also already a beast and has just turned 20.