"Enterprise" isn't right in the name. "ent" is.

Until a few weeks ago, I didn't know what the "Cent" part of "CentOS" meant, mostly because I didn't care. I somewhat assumed it meant the same as "penny".

Rocky Linux actually sounds good to me. Like a solid, rocky foundation on which to build your house.

And regardless I am not really sure how I feel about the professionalism of backronyms in general.

We're arguing about a frigging name. Rocky Linux; you know what Madrake sounds to an Italian? https://www.youtube.com/watch?v=KguscIm8N0Y

I think, especially around Linux and open source projects, people care much less about naming than we tend to believe. Product reputation and the endorsement of IT/developers matters far more, in my experience, than a name.