Tbh, I personally believe DEXs can't really match the volumes we see over centralized exchanges and even if they will, they won't be able to handle it.
They can't at the moment, simply because there isn't the desire in the community to use them. If enough people finally get fed up with centralized exchanges pulling their legalized scams and stealing their customers' coins, then DEXs will easily grow in both size and number to accommodate that.
I used IDEX (one of the most favorite for everyone going for DEX) but even they had several issues
Given that IDEX requires KYC, it cannot be called a DEX in any real sense.
A surge on the number of newly-created accounts to take advantage of the no-KYC 2BTC limit per account would have been noticed by Binance
As far as I am aware, there is no evidence that these were all newly created accounts (please CMIIW). Many or all of them could have been accounts that were created months or even years ago.
For one, if the hackers did not send the hacked bitcoin to Binance but Electrum, or Blockchain.com or any of the myriads of wallets service providers we have in the crypto space, would they sue all of them or they would focus only on the site that have KYC?.
It is impossible to tell from an address alone which wallet was used to generate it or is being used to interact with it.
Another question the judgement would be answering would be the responsibility of keeping the funds of users safe. Is the the original platform provider or the settling platform provider?
Neither. It is the user's responsibility. If you deposit those coins to a third party exchange, then they are no longer your coins.