Maybe something is lost in the translation, but here it is what my screen reader makes out of the article:

Along the way we realized some of our math courses had not been updated in quite some time, and some schools were still leveraging these courses to teach. Images for equations are bad m’kay

It was immediately apparent was the use of images to represent equations like this: https%3A%2F%2Fsubstack-post-me… https%3A%2F%2Fsubstack-post-me… This is not great… the font is a bit on the smaller side and the font itself is not very legible, in my non-font expert opinion. Making matters worse, there is no alt-text provided that can explain the equation.