Judging from the red light incident, the Waymo Driver does not consider passing a red light to be a Never event, in the same way that say, hitting a pedestrian would be a Never event. So it's OK with being advised by a human that it needn't obey the red light whereas it wouldn't be OK with being told to just drive through cyclists.
That makes a kind of sense, a human shouldn't need to run red lights but they do it more often than you'd like, whereas they mustn't hit pedestrians (although sadly they sometimes do). Just the other day I was watching video of a failed London Underground signal which is stuck at red, the driver knows this, and the signaller knows this, and nevertheless the signaller (who is in a position to know as they've got a board full of position data for trains in their sector) has verified that crossing this signal despite the danger aspect is safe.
This happens so often (ie sometimes) that TFL has a recorded announcement to play to passengers when, as the driver, you're about to do this. The train, you see, doesn't know that what you're about to do is fine, so it's going to stop you. So as the announcement explains, the train will move forwards slowly, brake suddenly to a halt, and then after a moment proceed slowly again. The announcement suggests that passengers should sit down if able to do so. The driver having secured permissions from the signaller will drive forward ("at caution" ie slowly enough to stop short of any obstacle discovered), then the safety systems will detect the danger signal, braking the train to a halt, then the driver proceeds to drive slowly again because they already know why it stopped.
I don't know the law where you live, but in the UK this is illegal and the
emergency vehicle should have instead silenced sirens (the lights are left running) so as to avoid agitating you since you can't do anything to help while you have no safe route.
The reason is that you may make things worse by running a light, the people driving an emergency vehicle have in some cases trained specifically to run lights (although not all reasons they're driving under lights and sirens would justify doing so) but they aren't trained to make it safe for you to do the same so you should not.
That makes a kind of sense, a human shouldn't need to run red lights but they do it more often than you'd like, whereas they mustn't hit pedestrians (although sadly they sometimes do). Just the other day I was watching video of a failed London Underground signal which is stuck at red, the driver knows this, and the signaller knows this, and nevertheless the signaller (who is in a position to know as they've got a board full of position data for trains in their sector) has verified that crossing this signal despite the danger aspect is safe.
This happens so often (ie sometimes) that TFL has a recorded announcement to play to passengers when, as the driver, you're about to do this. The train, you see, doesn't know that what you're about to do is fine, so it's going to stop you. So as the announcement explains, the train will move forwards slowly, brake suddenly to a halt, and then after a moment proceed slowly again. The announcement suggests that passengers should sit down if able to do so. The driver having secured permissions from the signaller will drive forward ("at caution" ie slowly enough to stop short of any obstacle discovered), then the safety systems will detect the danger signal, braking the train to a halt, then the driver proceeds to drive slowly again because they already know why it stopped.