I see. I guess I was coming at it from the subject of the thread, which is more about the wizard.No, I prefer bolstering the fighter over nerfing the wizard.
You seem to be reading things into my statements that aren't there. I never claimed that you can't challenge a high level wizard. I can and I have. I've claimed that a competent wizard player can choose to play on an entirely different field from the fighter. They can choose to play either the same game as the fighter or not. However, the fighter cannot choose to play on the wizard's field. The fighter has to play the fighter's game.
I think that the fighter ought to be bolstered to be able to play on the wizard's field. Probably not to the same degree as the wizard. The wizard is, after all, much diminished when playing on the fighter's field. But the fighter ought to have the option to play there if they choose. This would most likely entail giving them some save or suck abilities, and maybe even some save or die at high levels. As well as a heap more utility.
As a matter of pure preference, I would always reign things in than expand them in 5E as solutions to problems. 5E is already too super heroic for my taste, so if the problem is wizards versus fighter power and versatility, limiting the wizard is better.