The last time I crunched the numbers, there was one WikiTree profile for every 5,000 people born since 1 AD, so to have one WikiTree profile for every 1,250 NHL players means that NHL players are better represented (or, to be more precise, less under-represented) than average.
I'm not saying that that means that people shouldn't add any NHL player who interests them. I'm just pointing out the scope of the task remaining.