By the way, we can speculate all we want. but when we look at the data we actually see quite the opposite. Private companies show more of a tendency to have peak and dip short term profit chases than public companies.
Attached is an image from analysis from 2014 that demonstrates this, we see the private company has higher short term profits but a much bigger rebound after the fact. This is typical, private companies are known to be more volatile, on average.