No, it is all about the way some people on a certain photo forum put down other peoples choices, as you can see in my first link.
Buy a high MP camera and sombody will tell you that 20MP, or even 6MP is fine and you have wasted your money. You wasted your money buying shift lenses, when you can do it in post is a mantra I get thrown at me when I make posts about these lenses.
Already on the second link, I am told it is just advertising and marketing that drive MP camera sales.
Everybody does different types of photography and needs or wants more or less sophisticated equipment, to suit what they do. I carefully chose the camera format I use, did a trail run with cheap SH gear, before buying a high MP FF camera. I read on a certain photo forum, that I chose Foolframe, as a small format sensor is good enough.
My title is a provocation, but the argument I set out above is a bit more serious. Let's see how my little experiment in the second link pans out.