And you really believe that promotional crap?
NO big exchange has enough funds to cover a real hack if their coldwallet security is breached and the hackers get their hands on those coins. The whole SAFU thing is just empty words, if Binance gets hacked for the +100k BTC they hold in one cold wallet there is no chance in hell you will ever see a penny, it's a closed shop and bye bye!
If they would really have a means to protect those they would insure them, but to date, no exchange was able or is willing to do so for all the funds, including Coinbase, and you can guess why, because nobody is willing to take the risks!