Kang is in China, which means Apple can contact authority and he’d be removed from all traces in a whimper. That, I believe, is something that scares him the most. There is no first amendment, no safe harbour of any sort, so yeah. That’s a valid approach for him.
Onto Apple, the only way to hold off top level secrecy imo would be to move all production to USA, Europe, Japan, Australia, New Zealand etc, where laws might block leakers from disclosing sensitive information. Would Apple willing to do so though? Also, if all what their marketing team can do is spitting out random numbers or random claims assuming people outside Apple don’t know anything about upcoming products, I’d say maybe go out and learn a few more new tricks.