Governments of all political stripes often talk about the importance of leading by example on accessibility. Now, we don't believe that anybody in the private sector needs to wait until the government gets it right. God knows, none of us are immortal. However, it is important for government to get it right, especially being at the core of democracy, and especially when the government repeatedly talks about its commitment to the disability rights maxim of “nothing about us without us”. Well, you can't do that if we have barriers to taking part.
I agree these things need to be done, not only because they're embarrassing at a symbolic level but also because they're so easy to fix. The barrier you're talking about does not require us to tear down any buildings or adopt any new technology. It's technology we know how to use.