If I met a sibset of
Ruth and
Naomi, I would think their parents were very, very religious (probably Jewish). Also, I'd be a little creeped out because
Naomi is
Ruth's mother-in-law in the Bible (I'm not religious at all and I still know that). I'd say yes, it is too much as a sibset.
I hate to say it but you would never, ever get
Naomi said nah-oh-mee. I love the name, though.