1. Maybe lower prices lead to lower ratings
2. Maybe lower ratings lead to lower prices
3. Maybe low quality leads to both low ratings and low prices
The article seems to say that #1 is the answer. Although I grant you that if you tell me Widget 1 costs $5 and Widget 2 costs $50, I'd assume that there's a reason for that. And maybe I'd be wrong.
It's actually a valid point which I happen to agree with, stated with a minimum number of words.
The article says that lower prices imply lower ratings, but the data presented only shows that lower prices correlate with lower ratings. One could equally well draw the conclusion that lower-priced software is of lower quality, hence the bad ratings.
