We differ in outlook here. I value net contribution... I think he's worthy because the HOF is not about a handful of elite seasons, it's about elite careers. 700 goals is elite, no matter how you slice it. He didn't accumulate all of his positive contributions by being one of the top 10 players in the league at any given time, so that's a strike against him, but his freaky consistency is uniquely rare. And he was very productive in a high scoring era and very productive in a lower scoring era even though he was long in the tooth. He wasn't a byproduct of the 80s, he scored 32 as recently as 1997, way past his prime. Pretty much nobody can compare to his longitivity as a very good sniper, I personally think that equals a much shorter stretch as a greater scorer. The 30 goal for 50-something years accomplishment has earned him a lot of fame and respect, it's going to be remembered for a long time.
(but I think he's just BARELY worthy, and I'm sort of playing devil's advocate... compared to a lot of guys that are in there, he's more than worthy, but in an ideal HOF with higher standards, I would definitely consider not putting him in... elite career, but maybe not elite enough if I had my way)