IMHO its a tiny frag - so who knows. It looks nice - if that were growing throughout my tank I would be ok. The thing is - if it is the invasive one - they are easy to remove.
I don't know if there are different pocillopora, but I took down my last tank because I couldn't get rid of them. They were everywhere and it was a losing battle. Never again, like plating Monti, too fast and they take over.