Because if there is no downward pressure, and no MM's, shorts and other antagonistic players in the story to blame, then you're hit with the hard reality that we're really just stuck in a lull where the PPS has amazingly maintained only a 50% retrace from the run, while we wait for the company to make the progress needed to advance.
So its easier to setup a story where there is battle between longs and shorts over the daily PPS... and the good investor should do his part by buying shares at every opportunity... just my opinion!