Interesting stance.
It's about time this particular leaky hole was plugged. Getting contact details by the back door of making users agree to share them without permission from the actual owners is a concern I've had for a while, which started when these buggers partnered with the now defunct Cyanogen Inc (CNGN, nothing to do with CyanogenMod/Lineage).
Of course, world+dog are now doing the same thing, so much so that it's pretty much guaranteed that Facebook or some other ne'er do well has your details if you're in more than two smartphones' contacts.
For now. It will be interesting to see how this pans out. Continental and Gates are the only two manufacturers I'll trust to supply timing belts - now I may have one more reason to prefer Contitech if their policy results in a wider review of this shady practice.