However, if miners stop acting, as LoyceV put it, "as if bitcoin is fungible" (e.g. reject transactions from OFAC list or refuse to build block-candidates on top of blocks containing transactions from such addresses), we are in trouble.
On other side, it makes other pool (which accept all transaction) more attractive since they could collect more tx fee. It also add incentive to resume development of decentralized/P2P mining pool.