It’s unlikely as ICANN has said that it will retire the domain if io is removed from ISO 3166-1 https://www.icann.org/en/blogs/details/the-chagos-archipelago-and-the-io-domain-14-11-2024-en

No it would be the first. .su is still considered a CCTLD http://www.iana.org/domains/root/db/su.html

That would make it the only 2 letter non country code top level domain. And could also cause issues if another country is later assigned io as it’s 2 letter country code by ISO

Mercury by Imagine Dragons

Close the sky is an amazing phrase to be able to use

We do. It’s called the Equality Act 2010. It requires reasonable adjustments for disabled people. However, this is not always provided for in reality. The equality act is mentioned in the original article