Bob doesn't like managing daily resources. He stays away from spellcasters because they're a headache. Ever since the 80s he's played fighters, sometimes thieves if he wanted a challenge.
He sees 4E. "These classes are all the same" he says.
"No" say others "they're all different, there's a multitude of things you can do, you can be a barbarian that calls on primal spirits, or a warlock that makes pacts with eldritch being, or finally a fighter that's actually effective."
Bob sits down and plays a session. He has to manage daily resources and he doesn't like it. "Ugh" he says my Fighter is basically a wizard. Others argue with Bob and tell him all the ways they are different. But Bob doesn't care. He knows they are the same because they go into the same box. The box labelled "stuff that Bob doesn't want to have to do while playing D&D".
I don't see why this gets so overcomplicated.