It's amusing to me that artistic gatekeeping exists even in typography. What was the class consensus on whether it counts? Also, you should share the piece
The dots could be squares. The size of the dots (boldness) can vary.
https://www.pharmabraille.com/pharmaceutical-braille/marburg...
Unified English Braille (the specification that maps dot combinations to English characters) is not a typeface, just like ASCII is not a typeface.
I Ould argue, however, that a specification like Marburg Medium[1], which specifies how Braille should be represented physically, how big the dots should be, how far apart they should be spaced etc, is a typeface.
[1] https://www.pharmabraille.com/pharmaceutical-braille/marburg...