But why would anybody would be prosecuted?

Sometimes, especially in Africa, shit hits the fan for no particular reason.

Bitcoin is not banned in Tunisia, but the police there arrested a 17 year old gamer for just making a bitcoin transaction, ostensibly confusing it with money laundering.

If tomorrow a gov will also said: we allow everybody to shit in their own bathrooms, would that be also "awesome" news or weird?

Every country is different. People in Japan used to shit in public. I mean by the pavement. Until the government made it illegal. Still quite the norm in many third world countries.

It is still illegal to be drunk in the pub in the UK and I believe in Australia too.

Countries around the world have strange laws. You can ignore them or move elsewhere. Bitcoin is certainly helping with the later. People who can't afford either, have to listen to the government.

Yes, it's awesome to see some central banks not to be hostile towards Bitcoin, especially in African countries.