This is a blog not a paper, it seems you wouldn't like the source material: https://arxiv.org/pdf/2001.07685.pdf

But you are correct! This way of showing off your work is much nicer than what ends up in the paper. The blog representation is a good opportunity to show off the results of the paper on a higher level. However, the "mathy" paper is still important so other experts in the field can understand the details of the technique