> Just maybe the EU regulators are technologically illiterate?
Of course they are because
1) all regulators are technologically illiterate, these are not exceptions
2) regulations of this kind are fundamentally about people not microchips. They talk about results to people, not coding constructs or network topologies. If it's technically possible to do it, but not technically possible to do it legally, then maybe it's a bad thing and don't do it at all? If there's a new technology, is it exempt from current standards? Would you say, "hey, new weapon invented, it's legal to murder people with it!" ?
NB: I'm fairly certain that Instant messaging can be done legally; what maybe can't and shouldn't be done legally, is the FB business model of monetising user data over that. IDK why someone would defend it so strongly.