Whatever happens to any DeFi project the code is to be blame, this is why DeFi projects are highly risky than any other projects in crypto space, if failure comes it's the code, if hacks happens it's the code to be blamed, this is just the way it is, so tell me why won't devs rug pulled themselves? There will be no one to be blame anyways
A majority of these "DEFI" projects are just shitty age old HYIP scams just modernized to take advantage of not having to run the garbage on your own servers.
Tons of these contracts have "emergency withdrawal" to deployer/owner address backdoored into them allowing the owner to steal all funds whenever..
Ultimately if you don't audit the code you're sending your money to, then its a reference back to a fool and his money are easily parted or something.