I was trying to find the link to a video with Garrick I found the other day pipping a bunch of his eggs from this season. He bred a triple codom to a normal and had about 14 eggs, most of which ended up being 1 gene animals, some were 2.
Also, super 'x' to a normal makes 100% 'x'. And I don't think using one example of someone having exceptionally good luck is a proper refute for my argument

. The odds of the results you stated from such a pairing (off the top of my head) would be 1/16 or 6% for one (which really isn't that rare), and 3% chance for two.
When someone breeds a triple gene to a normal, there are equally good odds that they will get triples, doubles, or singles of all of the genes (or even a normal). They are obviously hoping for the best, but statistically they are just as likely to get singles as they are triples. I guess technically you wouldn't consider that bad odds, just bad luck in general. For big breeders, when they do this over a dozen times, they end up with a lot of single genes inadvertently.
As for the bananas and the other ones you stated, I mentioned in one of the first posts I made on here that people jumping on the new and popular morphs DOES cause a flooding of that morph, and DOES end up hurting the market. I saw one person with 20 male bananas, which makes it obvious he just bought a banana male and bred it to a bunch of normals. That's because it's new, popular, and expensive. I'm not saying everyone does this, as I see a lot of other things done with bananas, but anyone jumping on a new morph should realize that someone is going to be breeding out a couple dozen to try to make a buck, and the price of the morph is without a doubt going to drop. Same story with the other morphs you mentioned...popular, pricey, and simple to make, so of course you're going to see a ton of people with them once they figure that out.
I definitely understand what you're trying to say, but why would anyone be mass producing things like pastels, mojaves, or yellowbellies intentionally when there are dozens of other morphs that are worth much more? It's the result of not hitting the odds on double/triple/quadruple gene males to normals, as I see it.