I can't imagine the status page is mentioned anywhere in the contracts. I would think that the only language that is included is that it's the customers respons

I can't imagine the status page is mentioned anywhere in the contracts. I would think that the only language that is included is that it's the customers responsibility to track and notify the vendor (Github) about any downtime, and to do that within 48 hours of the downtime having occured. And only then will the customer be eligible for compensation, probably in the form of free service credits. My personal take is that this wording is the reason you see so few public status pages in general, especially ones with automatic and minute-by-minute status history. Better to put it on the customer to have accurate monitoring in place, which most people simply won't have.