If you go to a TradFi person and say "here we have a blockchain with censorship and reversibility built-in for emergencies. We built it for you, because you wear a really nice suit, and we want to build interweb financial systems, so we cater to your needs, bailouts and all" then the first thought he'll have is:
"Oh that's great, if I ever make a mistake on your blockchain, I can call someone and have it reversed"
Then he'll go home and think some more. The second thought he'll have is:
"Wait a minute. This design also means that if I book a highly profitable trade, my counterparty could call someone and have it reversed, screwing me."
And then he'll bring this up with his smart colleague who knows the history of TradFi and she'll add:
"If they have censorship and it succeeds eventually they'll weaponize access and threaten to kick us out unless we pay through the nose. That's the history of all TradFi"
And then our man we'll realize he'd rather have a chain that is never reversible and can't censor, because it's easier to make sure that you never make a mistake than it is to make sure nobody else ever screws you or censors you.