The entire purpose of this article is to self-servingly attempt to convince the reader that their product is the only solution to QA problems.
It correctly identifies some challenges with QA, but this solution is certainly not the only way to have effective QA. That Rainforest is resorting to such a disingenuous presentation of solutions to QA issues makes me think they probably don't actually solve QA problems very well.
"We have researched what makes QA successful and X, Y, and Z are what we found. Here's how we believe we're solving Z for our customers" would be a much more honest pitch.