I worked at a company that hired an ex-Amazon engineer to work on some cloud projects.
Whenever his projects went down, he fought tooth and nail against any suggestion to update the status page. When forced to update the status page, he'd follow up with an extremely long "post-mortem" document that was really just a long winded explanation about why the outage was someone else's fault.
He later explained that in his department at Amazon, being at fault for an outage was one of the worst things that could happen to you. He wanted to avoid that mark any way possible.
YMMV, of course. Amazon is a big company and I've had other friends work there in different departments who said this wasn't common at all. I will always remember the look of sheer panic he had when we insisted that he update the status page to accurately reflect an outage, though.