Actually...is there even a reason for a blind developer to indent their code (outside of languages like Python where whitespace is significant)? Sighted people do that so that the code is easier to read, but if you aren't reading visually, then the extra whitespace is useless (the nested context information is already conveyed by curly braces and the like).

It's possible that this developer normally writes without stopping to insert or adjust indentation, and then runs a formatter to pretty up the code before sharing it with others - but simply forgot to do so in this instance (or didn't have one available in the coding exercise editor)