Then they should have a "?" status that can be triggered by automated systems that acknowledge that it looks to be an issue but that they are manually investigating.

If it's a false positive they just resolve it without it affecting SLA and if it's a real problem then us customers wouldn't have to debug our own stack for 2 hours before Microsoft informs us that they are the problem.

EDIT: Wonder how many man-years of extra debugging work their non-working status page have caused the customers.