Naples, Rome, Milan, Genoa, and Turin are just cities in Italy; I'm not sure what's childish about that. They have to use something for codenames.
Ah, I was unsure if it was named after the city or the [Tolkien character](https://en.wikipedia.org/wiki/T%C3%BArin_Turambar).
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?