Aldarc
Legend
Maybe that is what you are seeing, and I respect that you have that reading of the situation; however, I see things differently from you. I see people who want a warrior with the reliable mechanical capability to exert an impact on the direction of the game in ways other than making things dead.What people seem to be wanting, is powers that do similar things to spells, without the limitations. That are as powerful at high levels as high level magic, without the sacrifices wizards make. It’s just seems to be wanting your cake and eating it.
As such, I don't think that people are pointing to the wizard or spells because they want the warrior to perform these exact things, but, rather, because magic is a clear area of the game where players have mechanical buttons to push or levers to pull that can reliably exert a certain degree of narrative agency over the game fiction. Magic does not require GM approval for it to succeed. The player casts X, Y happens as a reliable result (assuming successful check/roll), and Z becomes the new state of the game fiction. Lather, rinse, repeat.
I suspect that the popularity of the Battlemaster Fighter is no small part a result of how it has a suite of mechanical powers that allows the player a greater latitude of impact over the game in a way analogous to spells. Again, it does not necessarily involve the sort of things that high level magic is capable of performing, but it does often give the players a mechanical means to influence the state of the game fiction.
Moreover, magic is not limited to combat. Magic can also have a profound effect in the other game pillars. So casters often have a means to mechnically exert that sort of agency in all modes and pillars of the game.