I will attribute this to the ignorant of management. The local government here mandated all website to have w3c AA grade accessibility. But all the management

I will attribute this to the ignorant of management. The local government here mandated all website to have w3c AA grade accessibility. But all the management fellow it by the letter of standard. None of them provide us the time or resource to do accessibility testing. They explain away the accessibility issues raised by the concerned groups. So, yes plain html is better. They have a higher chance works without any prior testing