You are missing the point completely. First....156.70 did not hold.....every key level above 155.40 did not hold.
That is the point. So if you understand what retrace level you are supposed to be paying attention to then you realize that there is no reason to be bullish anymore. The only reason to be bullish would have been had SPY been trading above it's key levels that proved buyers were in control.
The trading rules that have existed for a long time still work if you pay attention. So that being said, the real break is now 150.78. That silly gap up and over 153.59 looks to me like the clowns were trying desperately to make shorty cover.