Binance has a good reputation, of course they will not do things that make them look bad. But chances are they could have done something in CMC on a project that would rival binance
To me, Binance needs to acquire CMC to promote their upcoming projects. Their passion is to promote and attract more major investors around the world into good projects. Binance exchange is widely known by people in the crypto market, but to promote it more broadly, CMC is required. Posting and promoting posts about Binance exchanges will be essential to boost its popularity. I appreciate this investment of CZ.