What scares me is the obsession with supporting old desktop browsers and ignoring the majority of people who are using phones and might not have access to a desktop.
It's not just governments: one of the (major) banks I deal with supports many types of account -- such as mortgages -- only via their apps, not on the web. I think that's appalling.
Similar thing happened to me with Itau in Brazil in that their website was barely functional (with the last month I was a customer I couldn't even login in) and had to do everything over the cellphone app. Super annoying as I wasn't a native speaker of the language and desperately wanted to use my computer for ease of use with translation software.