> You need to provide some statistics to demonstrate it was a common knowledge.

It was referenced in popular media for decades... So people knew about it and it was public knowledge. The reason no one cared is that the outcome of it wasn't the horror story being repeated constantly.

The funny thing is, if you think this law would affect you, it will probably reduce the amount of data they get. Why? Because they still spy on you with end-to-end encryption, it's just more work and they hack the shit out of you.