FTX recent hacked is not a breach but rather a planned insider job to exit some money on there dying business. FTX is already fallen when the hacked is already occured somI wouldnt say that its the main cause for there downfall but rather the shady deal of there CEO.
You are absolutely correct mate, the issue With FTX is not one that should be considered as a breach, but rather, the CEO mismanaged funds belonging to the users of the exchange.
Generally though, I think the message OP is trying to pass is that crypto users should stop storing their funds in centralized exchanges, this one message is one that can never be outdated as long the crypto space continues to exists and newbies continue to join the space, ive had this experience when cryptopia exchange got hacked, I lost almost everything I had then and had to start afresh again, this experience thought me a vital lesson and till today, I never leave my funds on centralized exchanges anymore, I rarely use them even, except on days I decide to do some trading.