Troubling for some but the incentives of bitcoin will render these attempts at censorship impotent.

If transactions continue to get censored, the natural outcome is that mempool fees will bloat and the market dynamic of on-chain fees and the fee rate come into play. The highest fees will be included in the next block. If your transactions are censored, then you will need to pay a greater fee rate to get included in a block in a reasonable amount of time. You can also CoinJoin to prevent this sort of thing from happening in the first place.

Additionally, we are seeing the beginning of the emergence of a pleb mining pool (https://web.public-pool.io) that is likely to continue to grow even if only as a hobby project.

The more transactions that are censored, the greater the incentive for fees to rise which incentivizes more miners to come online and add those transactions to the blockchain

IMHO, all this shows is that OFAC is scared of bitcoin but they can't really do anything to stop it.