I didn't open the link in the OP because I still want to avoid any linked links. My guess is that the founder of Binance actually wants to say that the right call to make is Bitcoin, second is BNB.

In the same position, I am also not against if there are people who invest in altcoins even though only a few of them are also a good choice if you think about it based on experience.
When we position on the position of not prohibiting because to avoid being blamed when the reality is different from what we are about because being someone else's advisor is not a good position.

The ATH of some altcoins may be stalled and if it will happen, it may not be like Bitcoin.