Personally, I didn't understand the title as a security flaw. I simply understood it as a step forward into understanding/documenting the way Intel CPU work. S

Personally, I didn't understand the title as a security flaw. I simply understood it as a step forward into understanding/documenting the way Intel CPU work. So I don't think it is clickbait. The only part I'm not clear, is whether it was possible before? The article seem to imply that physical debugging tools (JTAG-like I presume) were already available to do uOP exploration?