Uniswap is a DEX which means no one is storing there token in there and not related if your main subject is not your keys not your coins against using centralized exchange.

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 wouldn’t say that it’s the main cause for there downfall but rather the shady deal of there CEO.