Another element of these "claimed to be private but can't keep its promises" is how caustic it is to the trust we have for our friends, family, and business associates.
People here can be privacy aware and well informed and avoid these data slurps-- perhaps go dig up the hidden settings to completely disable it or add firewalls so an errant keypress won't upload your browsing history. That's good.
But anything I share with another person or put on some webpage for another-- perhaps highly trusted person like a doctor or lawyer-- is exposed to them uploading it perhaps completely unwittingly (e.g. they fell for the exaggerated privacy claims) or due to an innocent misclick.
Normalizing privacy fails like this undermines the ability of even the most informed and aware people to opt-out.