Yes 10 years ago an average of only 70 players per draft ever played a single NHL game (one game!) That's 2.33 rounds of players per draft. I'm sure it's more now. More like 3 rounds.
So what is the point of drafting players who have no impact on the NHL. Historical drafts need only be 2 or 3 rounds. Everyone after that is half star potential. It just clutters up a database that is already too cluttered with peripheral nonsense.
What is an issue is that AI teams will trade a mid 1st round pick for a 5th and a 6th (which usually don't exist, and shouldn't). A lot of house rules needed so you don't fleece the AI teams and win easily. Playing against other human beings is really all there is/or ever will be. Maybe someday we can do this through an OOTP website.