Yeah, pretty much PR Crisis Communications 101. I'm at some point they were also deeply concerned and promised that they would conduct a thorough investigation

My hope is that this triggers a second backlash.

But we just got proof that backlashes can be ignored, so what's the point?

Ignored? Lots and lots of people installed Signal or Telegram. Some of them will stay.

If Fb is going forward with the change, then they've realized that those people are a rounding error.

exactly, how many people care about the TOS? most of the people I know use their phones like zombies, just clicking on the apps and to any "OK" button they see...

Over time, I've come to progressively reject the "zombie/sheeple" criticism of that behavior. People just want to live their lives, and we should focus our attention on the rent-seeking tech companies that try to cynically exploit us instead of victim-blaming. It's true that people could try to be more aware of what is going on, but we ought to work towards a world where we aren't nickel-and-dimed every second of the day by massive corporations.