I get that some level of accessibility is reasonable, but if you're expecting the same level of UI investment there for <1% of the population, I'd call that insane. Here, he can still call in and order the pizza.
0.77% is something that would be protested ordinarily, except when it comes to accessibility concerns. Why?
AWS downtime results (or the lack thereof) are what's desired by the market. Blind people are a small market, and prioritizing them equally or disproportionately is an inefficient use of resources.
This can be countered by "we can't just abandon the disabled". And we haven't; In this case, the disabled guy can call in and order a pizza. The core service is still available to him.
However, I don't see why forcing all features for every disability should be mandated. It's a small proportion of the populace, and while steps should be taken to enable usability, I don't believe that their desires warrant as much resources as the mainline, nor do I think we should force design to cater to them.
This is particularly so as, from what I get from the ADA, there is no size requirement for such. If you classify websites as "public accommodations", then all websites big or small now have yet another thing that they can be sued for.
We've already learned this via curb cutouts. An argument like yours was proposed (eg. we don't need cutouts in curbs for wheelchairs, so few people have wheelchairs) but it turns out that everyone benefits from the thing installed (child strollers, luggage pulling, movers, anything on wheels suddenly benefited). The position here is that this is similar.
Having something that is readable to the blind could suddenly benefit a wide, diverse range of people- colorblind folk, people who just underwent eye surgery, cataract sufferers, even photosensitive or light-induced migraine sufferers suddenly benefit! You could even argue that it would help reduce blue light exposure at night if you could browse without turning on your screen and suddenly theres an opportunity for literally everyone using a screen to benefit from ADA compliant websites for the blind.
