The Fighter design goals only define the fighter relative to other classes, and my point did not address that. I tend to agree with the OP on that count.
I don't see how this disagrees with any of what I said. We're told in the Fighter design goals that:
Other classes might have nifty tricks, powerful spells, and other abilities, but when it’s time to put down a monster without dying in the process, the fighter should be our best class.
and
Too often in D&D, the high-level fighter is the flunky to a high-level wizard. It’s all too easy for combinations of spells to make the wizard a far more potent enemy or character, especially if a wizard can unleash his or her spells in rapid succession. A wizard might annihilate a small army of orcs with a volley of fireballs and cones of cold. The fighter does the same sword blow by sword blow, taking down waves of orcs each round. Balancing the classes at high levels is perhaps the highest priority for the fighter, and attaining balance is something that we must do to make D&D fit in with fantasy, myth, and legend. Even if a wizard unleashes every spell at his or her disposal at a fighter, the fighter absorbs the punishment, throws off the effects, and keeps on fighting.
Emphasis mine. There's no possible way of interpreting this to mean that they intended to have Wizards be as powerful as they are and Fighters be Gimli.
If we look at LotR, (briefly; I
really don't want to make this about LotR. I've seen that whole thing argued out a hundred times)
Gandalf does not cast spells all that often, and they are not especially powerful ones. He's not teleporting the Fellowship to Mount Doom. He's not Flying around throwing Fireballs at orcs. And even then he's often offscreen to give the martial characters a chance to shine or step in to save them. In D&D terms he's a DMPC at most, or more likely an NPC.
How is this inconsistent with what I said? The fate of the world depends on the actions of the Fellowship, and the fighters are clearly shown being far elevated from the common in their prowess, but they do not have mythic powers or strength, at no point does Gimli divert the flow of a river to clean out some stables, nor does Legolas hold his breath for 5 days.
Fantasy literature as well as our myths and legends are incredibly diverse. This creates a huge window for any game designer to designate as the max level experience.
They did not promise you Heracles in this edition.
They promised me (and everyone else) a Fighter who is balanced with the Wizard.
Being Gimli or Legolas is fine when the Wizard's spell list is Bless, Command Person, Control Smoke, Control Water, Enhance Presence, Extinguish Flame, Flash / Spark of Light, Hold Portal, Ignite Small Fire, Knock, Loud Noise, Light, Shatter and Ventriloquism.