The links you cite are before the latest big changes to the security procedure in FB. Have you tried it after the changes?
Also "just" Google may be bigger than you think, e.g. your voice or text mail may end up in a lot of different departments that use it to train algorithms. Remember what happened with their WiFi sniffing.
My default stand is: all big companies are evil and will abuse my data if they need to. Therefore I want to spread the chances of abuse among different companies.
I think the biggest difference is that Google has aligned its interests more in line with users (as their best long-term strategy). Facebook seems willing to exploit users any way they can.
It's wise to be cautious sharing your data with any large company, but not all of them are created equal.
Also "just" Google may be bigger than you think, e.g. your voice or text mail may end up in a lot of different departments that use it to train algorithms. Remember what happened with their WiFi sniffing.
My default stand is: all big companies are evil and will abuse my data if they need to. Therefore I want to spread the chances of abuse among different companies.