Owners of exchanges need to complete this year with a good profit to show investors and partners their outstanding financial results. Therefore, Changpeng Zhao is interested in the growth of the market and will contribute to it.
I also find him hating ETH and constant FUD. He says that ETH is a scam and will soon fall under 100$ and of course he lied.
I also agree that exchanges can make money all the time and do not care about prices. Whether the market goes down or goes up, The happiest person is the owner of the exchange
As long as people keep their coins on exchanges, the owners of exchanges have huge resources to manipulate prices for cryptocurrency. Therefore, it is better to withdraw the coins and keep it at the wallet.