They are going to mine on a pool. How hard is that to understand? The revenue will end up in the specified address. But not as freshly minted coins of course since whole blocks only goes to solo miners.
It's hard to understand, because this is contradicting previous announcements and furthermore it would be more reasonable to tell us which pool + user.
Edit:
I am going to let the mining speak for itself when the pool merge is complete. I would like to note however that even with 5+ TH solo-mining it can easily take 2+ days to find a block due to variance, hence the move to pool-mining.
You were right. Though I have to ask: what value does a Bitcoin address have with Bitcoin moved there, if there is no guarantee, that those coins were mined?