They're 60 years old. The amount of training data on them is endless. Books, textbooks, videos, blog posts. The problem is when you want you do something that doesn't have 60 years of freely available documentation of their functions and applications
Like software, there's going to be a lot of pressure to use well documented tools within the model's training set. Innovation on the outputs may increase, but infrastructure and tooling will slow down.
If I'm making a PCB and I see anything older than 20 years, even glue logic, I'm very suspicious. Last time that happened (inherited design) the FETs didn't saturate and the LDO was just a DO... If the tool wants 7400 series logic, I'm not using the tool. None of my work is >= 5v signaling
I'm having it help design a 68k computer similar in spirit to the original Mac (the spirit being a tightly coupled video subsystem that time-shares the CPU bus), but updated with more modern peripherals, like PS/2 and SD cards. It's got the design more or less done, but the routing will be a nightmare. I'm not ready to just gamble on it having gotten everything right, so I will be doing a thorough design review myself and re-deriving all the timing analysis.
It's probably good at simple stuff. When you get problems like temperature dependent glitches, you need the engineering experience it doesn't give you (and an LA).