But, yeah, general infrastructure being down and affecting all kinds of disparate (travel and non-travel) sites makes sense and is boring.
Reminds me of an interesting study where researchers gave a list of numbers with some hidden property and let people ask if other numbers have that property, to try to figure out what it was. And people tend to generate numbers that agree with their hypothesis, to try to confirm it, rather than numbers that disagree, to disprove it. Wish I could find that study.