A useful accessibility is not cheap. Every project has its budget. Most of website still can be read out by text-to-voice software which should be good enough for information delivery. There is definitely something can be improved later.
It takes effort to program custom dropdowns and other form elements and mangle a website into tag soup.
Sure you can improve it later, but it's somewhat pathetic this wasn't working nearly two years after a pandemic was announced and it was almost a given we were going to need such a website?