I said before - it's more than just this. AMD's ecosystem just sucks... Intel may be doing things that are questionable, but, as a OEM on the much smaller size, Intel have a great partner program.
With Intel, I get advanced warranties, presales support, next day parts, details marketing and product information alongside access to privileged information and roadmaps.
With AMD, I was waiting the best part of 3 months for a call back, and their "partner" site which is open to the world is severely out of date and doesn't even have all products listed.
Intel is frictionless when it comes to doing business, AMD put up roadblocks.
This is my understanding as well. And why I believe AMD needs to either merge or be acquired to really make a run at CPU/GPU market. They’re seriously underperforming (this isn’t to say Lisa Su is a bad CEO).