Being free is not an excuse. If Google can't give a reliable free service, then they should stop offering free services. Thee way they're doing it is way unprofessional.
This is like saying the Red Cross should not be allowed to give free sandwiches to homeless people if they are made of baloney and government cheese. It's unprofessional! Either use premium meats and cheeses and artisanal bread, or don't give them any sandwiches at all.
No, its like saying they should not be allowed to serve expired food and let x% of people end up sick. They should either serve safe to eat food or no food at all.
If the Red Cross is found to hand out poisonous sandwiches on occasion because of an error in their internal processes, you bet they will no longer be allowed to give out free sandwiches.
If you do pay for Google’s services via G Suite then you do get instant human support.