Accessibility is a great thing to have and strive for, but it cannot be the number one design principle.
Imagine if everything around us would be designed for blind people.
Not necessarily designed for, but accessible to.
Additionally in sysadmin, blind-users are not just some random group, the ability not to use one's eyes is central to the Command Line Interface. You could always in theory get by with just a keyboard and a TTS that reads out the output, it's all based on the STDIO abstractions that are just string streams, completely compatible and accessible to blind, and even deaf users. (Unlike GUIs)
I suspect blind people imagine that a lot.
The idea is to design for all (or as many as feasible), it's not a binary either/or.