Technical countermeasures have been doing a pretty good job at combating insane copyright rules for a while now. It's often said that technical solutions don't solve political problems, but I think it's important to retain our freedom to run whatever code we like on our computers because that does seem effective at enabling freedom of communication regardless of laws made to quash it.
I don't know, mobile phones and messengers in particular are a very small target compared to general personal computing.
There are very few relevant messengers and adoption rate is king, because at the end of the day we want to use these messenger to communicate with people.
Getting people to try out new/different messengers is already a pain. And here every blow against an uncompromised messenger to make them harder to get will lower its usercount and push more people towards the compromised software they can easily get on the store.
Sure I'd say some way of circumventing this will probably remain available for a while, but I'd say it is extremely easy to make this very inconvenient.
After all this isn't about having some way to communicate safely, this is about being able to communicate safely in our daily lives is what I'd say.
