I'm a subscriber to her YouTube(one of my favourite videos of hers) and she has a bunch of videos aimed at helping game developers learn the maths concepts they need for making games, so her audience is mostly people with a coding background, I'm guessing.

So it's less that code is simpler than math notation, more that the maths notation looks scary to people without a maths background, but here's a link to a different complex symbolic abstraction that you might already know