I think silly names is something that carried over from comic books and movie serials.
Star Wars is not serious drama. Its a live action comic book serial.
Even Starkiller came out of Killer Kane from Buck Rogers. I know Lucas changed it to Skywalker so it didn’t sound like the hero was a mass murderer.
I mean the Emperor was named Sidious in the Prequels. Short for Insidious. Stealthily treacherous and deceitful. His master was plagueis aka plague us. Hego Damask.