It is more legible than your average "font-family: sans-serif” (aka Arial, Roboto, Helvetica) but it’s not that much of an “original idea”. For example Frutiger by Adrian Frutiger, a type family that a lot of airports use as it’s designed with legibility at long distances, or even the Verdana by Matthew Carter, ubiquitous web font that powers this and a lot of other websites’ typography that has specifically designed for legibility on low resolution screens, aren’t that less legible than this font. Still, I like the idea that some people on Braille Institute has decided to commission a typeface with a “free” license.