Probably referring to the infamous Ethereum fork which is not a good comparison. That was because of a security vulnerability found in multiple high-profile smart contracts, not someone fat fingering an address.
I doubt Binance has the influence to convince anyone to fork just to save them. They have no outsized control over Tezos afaik.
They could probably convince Tether to blacklist and refund the stolen/lost coins though, which is maybe what GP meant. That should not be confused with forking the underlying chain though.