In the last major AWS outage, it stayed green because updating it depended on some services affected by the outage.

Even when they can update it, it seems to be a manual process.

I think they've scrapped the AWS dependencies there, which were awfully silly. But it doesn't really seem to update regardless, and when it does it's a cute little 'i' on the green checkmark to inform you that everything is fine except for the 'actually working' part.

After nearly 10 years working with AWS, I've learned to never trust that page.