Six missing transactions spending from OFAC-sanctioned addresses. Could this kind of filtering be a threat in the future?

"This raises the question of why F2Pool, a pool with origins in Asia, is the first pool to filter transactions based on US OFAC sanctions.

The Bitcoin network, however, continues to work as normal. A single pool filtering transactions does not affect the censorship resistance of the Bitcoin network as a whole. Further monitoring of the transaction selection of mining pools allows identifying when more pools start to filter transactions based on, for example, OFAC sanctions. It also allows miners pointing their hashrate to these pools to make an informed decision on switching to a different pool if they don’t agree with a pool’s (unannounced) filtering policies."

https://b10c.me/observations/08-missing-sanctioned-transactions/

I was hoping for some thoughts on this? I'm thought I was pretty tech savvy, but this stuff is above my head. I'd be interested to see others help explain the situation better. I'm not fearful but I like to be informed. Thanks for any input you folks have!