You are spot-on about the math myth. I wrote an article on how math is completely useless for most part of web development and mobile development which is the bulk of tech jobs. When I worked on game engines and audio engines, I used a ton of math. However, I think the whole math thing is just to scare potential developers away. It also comes from a place of insecurity as developers feel that nearly everyone with the right practice can do their job hence the over-saturation of the field. It also comes with feeling like a software "engineer". Man! our industry is just filled with weirdos.