Those numbers are outrageous and it points to that plunge being a once every few years occurrence. It could of course get back there again after months of boring falls which would be a lot less fun but the prospect of falling through the floor that way again looks remote.
It could happen though as anything is possible in crypto, whales are just looking for the right opportunity, and if it dump then they'll start making money again. That information you've share is pretty amazing, it only tells that there's a lot of money here in crypto and it will not die, and every time it will dump it could easy bounce back with people pumping it every time it will happen.