Do you have to know? CZ wants the best for crypto space, if he noticed something wrong then something is definitely wrong, he is not someone anyone should doubt because Luna crash must have affected the exchange as well, if this is going to avoid another Luna crash part two then CZ is doing the right thing.
CZ wants to save the market from crashing with the announcement of selling such a large amount of FTT tokens, are you really thinking? I think CZ has a conflict with Sam about something, which is why CZ wants to not be involved in this project in any way. And tried to out the competitor by creating this FUD. So I think business and personal matters are very closely intertwined here.