They hated him because he told the truth.
This is a shit load of code, serious devs capable of doing this would be doing something that paid them instead.
AI can take in a shit load more information at once and spit it back out in minutes, far more than we can hold or deploy. Which means an enthusiastic amateur can test and iterate many times in days. Which is why we have playable Ocarina of Time remake emulators and decomps within 2 or 3 days all of a sudden.
Hating AI as a technology is a distraction for morons, late-stage capitalism doesnt want you to think about it too hard so it dangles something scary like a job stealing machine while engineering society so that even with a job you cant afford fuck all.
Look up.