I do not understand why the CEO of Binance promoted this Trust wallet as he said as good to store coins that have to own your private key --perhaps, he has a share in this Trust wallet company?
That's because binance owns trustwallet. They acquired trustwallet in 2018. Visit the link below and read the announcement made by binance in July, 2018.
Binance Acquires Trust Wallet - A Secure Mobile Crypto WalletIt may worth to mention that Trustwallet was open source before being purchased by binance and became close-source after that.