This has been a wonderful social experiment, enabling people who didn’t live in the 19th century to see what happens when banking and investing is treated like the wild west. Maybe something could have been different this time? In the end it wasn’t, and it proves the necessity of regulation and institutions. There aren’t very many other aspects of our society where we get to have that kind of experiment and find out…
The promise of DeFi has a higher barrier of entry for those unfamiliar with the technicalities of interacting with decentralized systems, but they generally have more transparency in management of funds than crypto-centric businesses. All code running on the blockchain can be audited and so can the funds held within smart contracts. There are plenty of valid criticisms that can be made of various cryptocurrencies with those models of on-chain finance (and even with the value of cryptocurrencies themselves), but criticism of cryptocurrencies deriving from bad businesses that manage them shouldn't be one of them in my opinion.