It isn't in their best interest to have a reliable status page. They want status page to contain information about failure only after people know about issues through other means. For the same reason cloud providers don't provide rebates on outages unless you ask for it explicitly.

I think the only way is to have status page operated by an independent 3rd party, but I don't think there's a viable business model for someone to provide such service. Perhaps there might be even a risk of lawsuits against you.