Seriously, is the issue that we can’t make up new names, or as someone said from Reb Chaim that these are Zionistic names?
If the issue is the latter, what about the sephardic name Zion, or the Ashkenazic name Ben Zion? You can’t get more Zionistic then that, and yet there were Gedolim with those names.
BTW in the book Holy Brother about Reb Shlomo Carlebach ZTL, I believe there is a story about a woman who chose the name Hatikvah for herself. She was not given a Jewish name at birth.