Yes, this is it, exactly.
Which is why Apple didn't help the FBI break iOS.
They did choose to not provide true E2E encryption for iCloud, however :(
Re:Facebook Helped Develop a Tails Exploit
by NicoJuicy on Wednesday June 17, 2020 @12:35AM
(#23547831)
The FBI doesn't need Apple's help currently. iOS exploits have become cheaper and more common than Android
https://threatpost.com/android-zero-days-worth-more-iphone-e....
Facebook had no control over the exploit once it was handed over to the FBI. It could have been simultaneously used on the child predator and 100 activists at the same time.