Let's advice our friends correctly especially when the notion of not your keys, not your wallet is being spread to allow users to have full control of their crypto assets!!
Binance is valuable to me and I used it alone for over 4 years before I have other wallets, plans vary, and the comfort and benefits it gives me till now others could not. As for the wallet, does my Bitcoin hang in the air when I send it to Binance? Meaning it has a wallet that holds it, right? It's you who needs learning and dynamism in thinking. Binance being an exchange doesn't mean it can't store your coin, it is multipurpose and I added it due to its advantage as the OP already heard about it.
What you could have reasonably said is that coins are risky on a custodial wallet regardless of being an exchange or not, which would have been constructive to an extent.