I am very much aware of the fact that
Ezra is exclusively a masculine name in English (which, by the way, is also the reason why I, personally, would never use it for a girl in an English-speaking environment).
However, that doesn't exclude the possibility that it is a legitimate girls' name elsewhere in the world. And I thought on a name board like this, why not bring it up? Regardless if this was the inspiration behind the choice (which, just like you, I highly doubt).