anyone who this is supposedly targeted at will just start encrypting their messages on their own so even if message is intercepted it cant be read without difficulty/reasonable time. I could do it even here: U2FsdGVkX1+w2vSFD+69kO38y4VaS7pIJlM9vam//gU= (passkey=test)(aes-256-cbc)
conveying information to large amounts of people this way is difficult, pretty much impossible if recipients are tech-illiterate. But if you REALLY have something you want to hide, you dont have to rely on communication services doing it for you. Only people who will suffer from this are the real targets: all of us.
If services start making rules that you cant do this one could probably even obfuscate that message has been encrypted by encrypting it further in some other way that makes it look like written text, even if its nonsense.
only reason they want to do this is mass surveillance. Before long eu could become like china and you have to be constantly afraid something you or someone you have had contact with says something that is considered wrongthink. All it takes is couple of elections where awful people get power.
And all that is just from the viewpoint that governments will abuse this. Criminals will find even more use for unencrypted communications.