Right, and I think he is. The argument over the term "generational" seems to miss the point, I think. If he "only" ends up as good as Victor Hedman, not a single person is going to care whether that counts as generational.
I'd also note that it's quite rare for a prospect to hit the publicly-known scouting radar at 16 and stay there through their draft season with seemingly only positive development. I distinctly remember observers of international hockey saying "He's only 16, but I'm all-in"...and that has sustained itself for two years. That's pretty telling, I think.