> your own information set isn't exactly correct
My information is correct. I worked in fintech.
> There are legal means to force the recipient to send back erroneously sent funds in bank payment systems, the transactions themselves are generally non-reversible (some banks learnt that the hard way after accidentally sending money to Lehman Brothers after their collapse).
This is not evidence to the contrary. In fact, this bolsters my claim.
> The same rules apply to blockchains too, and people have successfully demanded refunds where the other party was known.
When the parties are known actors in jurisdictions you can reach. Crypto is a Wild West of anonymity, deception, rug pulling, scams, and hacks. It's constantly in the media for how often people are screwed by these systems. We wouldn't see frequent pleas for reversals if the system itself could actually restore victims.
Banks are incredibly well regulated. You can't even start a bank without permission from the state, and applying for permits requires that you meet a multitude of criteria and have organizational and process maturity.
Don't pretend crypto resembles banking. It's a shitty pasquinade.