The way they talk about it makes it sound like they invented the written word, but that notwithstanding the fonts actually look really nice in my opinion.
What makes this unique is that they're saying this allows for different fonts in the same piece of code. So you could have comments in one font, your code in another, AI written code in another, etc. Looks like all the fonts are the same size, so everything still aligns nicely.
Oh man fonts for coding are such a huge thing. There are people making their own forks of so they have certain glyphs, or a line through the zero (or vice versa) or little changes to other specific chars.