Work at a trading firm and we saw the entire thing play out, but we're algorithmic so we weren't set up to take advantage.
Though if you're a small player, there's a lot of opportunity here. Some times, the difference between the price for liquidation and the price you can get somewhere else is high. We saw one dude make a quick $300k through a flash loan. The market isn't fully efficient yet, so this opportunity was available for 10 min before someone took it.
