I've read a fair amount of Satoshi's posts and I remember that he didn't envision mining pools. He did consider botnets however and he didn't see them as a threat.

If decentralised is a fair description then surely 'trustless' can not be considered fair at this point. Since we're inherently trusting any mining pool with 33% or over not to attempt an attack.

I'd argue that relying on a central point of trust makes the word 'decentralised' a poor descriptor. But it is a distributed network.

And I also agree that it is unlikely that any changes will be made at the protocol level. However I continue to hope that enough people can work together to find solutions and that the dev team will actually implement those solutions.