Hey Simon, long time no see, you might not remember but we met in HK back in the day.
I listened to these three episodes. There's one point of nuance you're missing with regards to who has power over the protocol.
The rolling set of people who receive bitcoin in exchange for something else hold all the power. They can override the developers, node operators, miners, and even exchanges.
I explained it here a number of years ago so it needs updating but you get the idea:
https://youtu.be/X_xgmVLyB94
