To the first point, from everything I've read there are many who believe he has the potential to be better than EK. I don't think majority could be quantified as I don't know how many qualify under that description tho.
I'm not sure what your second point means.
There are many saying he could be at and possibly pass that level which is what you state. Isn't that contradictory to your first point? No scout will ever say definitively he will be better than player x.
Dahlin is further ahead of where EK was in his draft year. I don't think that's even debatable. The question is, has Dahlin maxed out potential or will he take the next steps similar to what EK did his first few years in the league?