And yet he still could have committed a crime using the funds at his disposal. Crypto doesn’t prevent crime. On the contrary it tends to make crime net easier via facilitating money laundering.
You don't seem to understand what "counterparty risk" means. If all FTX users had used a non custodial exchange to purchase crypto, the CEO of that non-custodial exchange would not have access to any customer funds, so he would not be able to commit any crime like that.
My wording wasn’t clear. I wasn’t referring to SBF commuting a crime with customer funds. I was referring to him committing any crime for which limiting his assets may be appropriate.