The criticism is about "EPYC" not about the codenames. That brand name has been used since 2017 but if you don't know that, it sounds quite gamery nowadays.
Admittedly I also have no idea why Intel calls theirs Xeon, which sounds like misspelled xenon. But then it might be a proper Greek word?
> The criticism is about "EPYC" not about the codenames.
The criticism above says "Turin, Epyc and lord knows what else". That clearly includes the codenames.
Trademarks are easier if they are not words (no prior use or conflicts), but having them be like words is easier so people can say them.