You say that as if every other TLD does not also have its own particularities. Do some basic research on a TLD before committing to it. For example, .cat is not for your cat pics.
Giggling at the thought of the Taliban leadership being told what "af" means... they're probably a bit miffed about that. Perhaps they'll take it on the chin and set up taliban.af or something.
Edit: I was mistaken, my bad. I thought the article was referring to the admin deciding not to renew the queer.af domain, which was reported a few months ago.
Because the article title suggests they specifically targeted queer.af. A better title would have been something along the lines of “taliban take control of Afghanistan’s .af tld breaking websites including queer.af”