No they are not.
There is 0 of me in the US, and that's what I originally though as well.
They're not suspicious per say, but they're not a 100% accurate when it comes to unusual names like Satoshi. However they're fully accurate if you search for common names.
My name and last name are as rare as his.
I'm pretty sure that my own results are accurate, unless someone made a clone of me (used the same name) while I was sleeping.