The actual article isn't nearly as stupid as the tweet makes it seem. I recommend giving it a read. It's behind a shitty paywall, but if you use Firefox's reader mode (Ctrl-Alt-R, or the little papper icon to the right side of the address bar) as soon as the page loads, you can read it.
His argument is basically that LLMs are able to do things we previously thought only conscious beings would be capable of doing, and so, if they aren't conscious, then perhaps consciousness isn't as important as we thought it was:
Brains under natural selection have evolved this astonishing and elaborate faculty we call consciousness. It should confer some survival advantage. There should exist some competence which could only be possessed by a conscious being. My conversations with several Claudes and ChatGPTs have convinced me that these intelligent beings are at least as competent as any evolved organism. If Claudia really is unconscious, then her manifest and versatile competence seems to show that a competent zombie could survive very well without consciousness.
Why did consciousness appear in the evolution of brains? Why wasn’t natural selection content to evolve competent zombies? I can think of three possible answers.
Some people will surely contest his claim that LLMs are as competent as evolved organisms. There's definitely a bit of AI boomerism at play here (we have benchmarks that show just how incompetent LLMs can be), but I don't think that invalidates his point, because LLMs can be very competent in the domains they're trained to be competent in -- they just aren't AGI.