I see it the same way you do. Bitcoin that can't be settled on chain isn't really Bitcoin so if we lose the mining centralization battle it's over.

Luckily I think the protocol and the game theory are robust enough to stay ahead of that, but my technical competency in mining isn't high enough to say that with meaningful certainty.

There was a lot of excitement around the ocean launch, but it hasn't done much since. I'm curious to see what comes next.

I used to worry about the amount of mining happening in China and that worked itself out when regulations threatened the network.  I imagine the same would happen in the case of attempted censorship.