The fact that more than once, you could not call 911 due to a bug, should be enough to convince people that Google doesn't test their products or have any quality control.
I would seriously hope that 2 instances of a certain bug, no matter how critical, would not convince anyone that the manufacturer "doesn't test their products or have any quality control".
Any other service wouldn't have bothered me. This was a reoccurring issue across different releases of the Pixel line... If there is a single thing you should be able to do with a cellular device, it's call 911... Not acceptable.