Which genre problem is that?
Is it the Genre problem of "what fantasy story involves summoning an angel once a day to work for you?"
Is it the genre problem of "what fantasy story involves casually returning 200 yr old dead back to full life and vitality with no more than speaking their name? Every day."
My problem with the genre is the sheer number of people insisting DnD is part of a genre which the mechanics of DnD clearly tell us it is not.
Exactly. 5e D&D is clearly supers and mythical already. Is that an issue? I'd say yes but let's leave that out of a conversation that is about assuming magic/casters stay the same, then what sort of martial needs to exist to be a peer at high levels.