You can't just go ad hominem on Consumer Reports. There is likely some truth/data behind what is printed. That being said, data can be incomplete, skewed, or affected by a number of biases or factors not taken into account. Also, correlation does not necessarily equal causation; just because there is a higher incidence of issues with WRXs than regular Imprezas, it does not necessarily reflect build quality or reliability. Taking into account the differences in owner bases and driving habits or conditions, it actually does make some sense. For the most part, high performance = high maintenance.
I'm hardly offended or surprised by their "findings" or even by the suggestion. For example, It's likely that more WRXs are crashed or damaged than regular Imprezas. Does that make WRXs dangerous cars? No. But it could be made to seem that way in print, based on numbers and stats.