I guess its obvious that the algo must work for a large enough number of people and for its optimization function.

You may simply be that % of the false positive/false negative that is a cost of doing business.

I mean - the alternative to this is having Google employ all the out of work journalists and editors and manually curate lists for people. I think the cost of losing a few people is vastly lower than hiring that many people, in each culture and country around the world.