What verbiage exactly are you looking for from Fastly here? I'm hearing "Nobody else did anything wrong, it was 100% a software bug on our end, and we're sorry about that." How much more responsibility are you asking them to take before you would no longer be considering them to "save face"? I'm trying to come up with an ironic exaggeration here, but I can't, because it kinda seems like Fastly has already taken 100% full responsibility and there's no room left for exaggeration.