There are a lot of good, but not great NHL players. Even so, not all great NHL players make it (or should make it to the hall of fame). The hall of fame should be reserved for the greatest of players, where their accomplishments and contributions are both distinguished, and unparalleled.
I have felt for years now both the NHL (and MLB) have really relaxed the standards for who they let in the hall of fame. I wonder if it's this increasing environment of "everybody wins" and everyone gets a participation medal that has led to even consideration players who are good or even great, but not hall of fame worthy.
In terms of Elias - based on who else is unfortunately, already in (that I don't feel is HOF worthy - I won't bother mentioning any names so as to not get into arguments with anyone - some of these players were well loved players by me growing up but I didn't see them as HOF worthy)...by those lower standards, it would be a hard argument why those other players are in and Elias is not.
But forgetting past squeakers into the HOF - on the whole I think he was a very good player, but not a HOF one. Yes, there are different levels of HOF players - guys like Ovechkin and Crosby are shoo-ins, guys who had solid careers with multiple cups and individual awards and stats leaders on their team as well as international competition success, etc. - easy choices. But then there are a bunch of on the border types and some who honestly would only get in if it was a bad HOF class year.