It goes like this: for as long as we are incompletely applying waterfall, someone else will attempt to refactor the natural process and call it something else, instead of just recognizing and then completing the waterfall process. This will be the state of things until either a) everyone abandons waterfall and/or calls it something else or b) waterfall is just so well understood as a natural law of the industry.

So its really more of a self-fulfilling prophecy situation, and yes in that regard, we are in a cult.