Isn't it he was relegated to a new position prior or during the IPO? So this is not a new news, it was even reported that they have cut the numbers of their employees already since last year.
The problem with them is that they stick to BCH and that's where the problem started, and couple with the worsening market conditions and then the failed IPO on their side. Plus competition is already there, Canaan, GMO (if I'm not mistaken) and others.
It's about time they need someone to lead them into a new direction.