I've went other the past news releases, it seems to be a good thing to me.
They will build the largest surveillance system ever conceived and will sell it under the banner of consumer encryption."
If I could snap my fingers and everyone would switch to Matrix [1] I would, but as it stands hundreds of millions of people use these services daily and getting them more privacy will be useful.
At least at that point they will not have the contents of your messages. Which now they do (with the exception of whatsapp).
But I've yet to find similar opinions in tech groups online or even less techy spaces.
E.g. Middle East countries
The ideal scenario for rule of law is no privacy. However, privacy has intrinsic value of its own so we're stuck trying to maximize privacy while minimizing the corruption. It's an ongoing balancing act; every society will do it differently and it will change over time.
Even the star child Signal [1] has to store metadata...
That FB doesn't get to snoop what you're saying doesn't prevent them from knowing who you are saying it too. They still control the app.