I respect your analysis, one thing that I would point out, is that during the "bear phase" whether it's very short term or more extended, the typical structure are alternating large range days. So you get a panic low into the close one day, the drift up and close on the high the next, then the fade of that day afterwards.
I think the main reason why so many were sideswiped by the 2/20-2/27 massive downswing was because there were zero counter-trend moves. Even the Oct-Dec 2018 20+% correction, it was filled with them. Now, we are back into something similar to that price structure.