But Google (and Facebook, and probably some other companies) don't have reasonable processes for disputing or resolving these situations.
Some have said that we should consider Google's challenge: lots of users/activities that need to be monitored and policed. The assumption is that Google could not afford to do this "reasonably" with humans instead of automated systems because the volume is high.
But Google certainly could hire and train humans to follow a process for reviewing and assisting in resolving these cases. They don't. It is doubtful that they cannot afford to do this; I haven't checked their annual report lately, but I'm guessing they still have a healthy profit.
In the unlikely event that involving more humans would be too expensive, then Google should raise their prices (or stop giving so much away for free).
To summarize, there is no excuse for Google to operate this way. They do because they can, and because the damage still falls into the "acceptable losses" column.
In 2 of those cases, they were high-6 & low-7 figure follower companies and were spending well into the 6 figures per year on facebook ads. They were both ultimately overturned after escalating via an "agency-only" facebook person who looked into it and found it to be automated violations (both the original and the appeal!). The excuse for why it wasn't overturned upon appeal was "Sorry we cannot disclose this since people would game the system if we did" yet a single person manually reviewed and overturned it in a matter of minutes.
I don't understand the (successful) business logic that gets Facebook into a scenario like this where you can't put 1 hour of human capital into reviewing a potentially million dollar contract.