Why leave $200 worth of BTC in the air and not pocket it when we know where bitcoin is heading in the long-term?
I was indeed surprised to read his explanation:
In light of how ridiculously small the extra fees mined were by accepting these transactions, and the potential for creating a significant number of new UTXOs, I am reversing my decision to mine these transactions.
So he's saying it's worth $220 to keep Bitcoin's blockchain
about 1 MB smaller (until another miner includes them anyway).