How many users actually disable JS for these (or any other) reasons? Might it be cheaper to e.g. have a call center that trained to use the website on behalf of such users, rather than increasing the development costs of every government site?
Last time we checked we get ~180k visits a month from people who specifically disable JS, ~810k further visits a month from people who don’t have JS available.
So no, it’d be more expensive to have a call centre.
I don't like this idea because it sacrifices ease of use in order to make small savings during the development phase. You shouldn't subject your users to extra grate where possible, and I think this is especially true for a government site.