Unless you can show us a source, we don't even know if he actually still uses it; all we know that the issue was fixed. It's probably a safe assumption that he immediately withdrew the coins after getting a feel of the shadiness of that wallet.
I'm pretty sure he stopped using them already. Why wouldn't he when he called out the app, said it sucks and that you should own your privates keys?Your app sucks
Any crypto wallet that won’t give you your private keys should be avoided at all costs
Chances are that he setted up his own full node.
