Here a great thread from the guy who discovered it, for those that like to read their info:
https://threadreaderapp.com/thread/976368845635035138.html
Can confirm that Facebook didn’t harvest my calls or text messages on my Iphones, 3, 5c and 6c
I did take Messenger and Facebook off my phone though.
“I did take Messenger and Facebook off my phone though.”
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Facebook is unnecessary - it’s easier to send people an email, text or just call them. They probably don’t don’t care about seeing a pic of what someone had for lunch or a bunch of duckface pics, anyway.