Derech Hamelech, putting aside procedural issues, do you really see a difference in the names Simcha (for women and also for men) and Menucha which are mentioned in SA, and the name Shira or Gila. What about the biblical name Devorah which means bee? Unless I am missing a second meaning to the word, how is a bee more Jewish or appropriate than Shira or Gila, etc.? Why did Devorah Haneviah’s mother give her that name? By the way, the fact that Shira is not listed in SA is no rayah that it is not appropriate. The list is mainly to tell us how to spell questionable names. For instance under Miriam there is Miri, and the Russian Mirush, and maybe Mirka. The name Shira is so simple it does not need to be listed.
In addition don’t we have a klal of pok chazi mai ama dvar and zillions of Jews have used the names on your list. Can they all be bad people?