It seems that, often times, when Intel gets into trouble it's because they are trying to experiment too much with a shipping product. I believe the rumor for why they were stuck on 14nm++++++ for so long was because they tried to cram too much into 10nm, while TSMC does far more incremental tweaks. Arc is running into problems because they decided to compete with AMD and Nvidia's top-end with their first mass-market release. They've stuffed all sorts of gimmicks into the drivers without making sure the basics even work properly."Science project" is apt. It's a mashup of far-out ideas. Each is interesting in the academic sense, as in it might have made sense for a researcher to write a paper about the idea and figure out whether it had any merit. Instead of doing something like that, Intel just jammed a bunch of these ideas into their ISA of the future and pushed it into production without doing the homework to rigorously check whether any of it was likely to work out.
Moon shot products are fine for companies like Google that have plenty of funds to waste, and perhaps one-in-ten will work out and be successful. As long as the search engine works, they can do as they please. When Intel does it with some of its most important products it blows up in their face.