On the Raid page it says "The defeat of Rare Juno ain't counted." (And yes, it says "ain't". Nutaku, if you're looking for proofreaders, I am available. (Watch as I totally make an obvious grammar error in this post.))

I'm at 6 defeats now, which is a bit slower than I was expecting. That's still plenty to have no worries about getting the PPS rewards, although maybe not at max level.