But why are pretty much all governments universally inept? It's not only the UK but US gov has also pushed for this and plenty of other stupendously stupid ideas or decisions - and plenty of other governments (well, all of them) besides.
It leads me to believe that our species is incapable of leading itself, that we are incapable of choosing good leaders.
The mistake HN commenters make is thinking "But TLS is encryption too! They can't ban Signal without also banning TLS!". They absolutely can if they want to.