I cannot sit on seats in a foreign region, although I added them to the list of allowed blocks.

forcedBlockProtectionExceptionList = ["anything$create:red_seat"]

If you read the message you would see that it's an entity, not a block.

And you're probably using the wrong ID too.

Just realized that this is a contraption. They are protected as a whole as a single entity, not each block separately. You are not really interacting with blocks. I have no plans to change how this works.