Not everyone who uses a screenreader is completely blind. Vision impairment is quite a wide and varying spectrum. Also the person viewing the site might not be

Not everyone who uses a screenreader is completely blind. Vision impairment is quite a wide and varying spectrum. Also the person viewing the site might not be the person who will be using the software. Perhaps it's not applicable here, but imagine a scenario where the person responsible for purchasing the software uses a screenreader.