Not exactly. He stepped down because he is a political opportunist. He feels that bibi lost support due to the weak military response so he wishes to capitalize on it by resigning as an act of defiance. Imo the military reaction was weak because behind closed doors trump cooks a tegional deal that includes arab countries, hamas and israel (bypassing the corrupt plo). Iran funds hamas and since the sanctions work, hamas is left with no money, this makes them willing to go for a deal.