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They do have a red icon if an event impacts an entire region. If a customer is correctly utilizing multiple availability zones, a failure in one zone should only impact the customer until they can fail over (Should be within minutes if they are automated).

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Aren't multiple availability zones impacted though? I don't get how Heroku can be so widely impacted if its not for the fact that multiple Availabiltiy Zones have been impacted.

The power issue only struck 1 of the 5 zones in US East (Virgina)

I can't speak to why Heroku was impacted as much as it was. It could be that they have single points of failure, or run at a utilization level that makes losing a single zone difficult.

But the icon is meant to display AWS status, not the customer's. Friday's outage did warrant a red icon - unreachable instances, corrupted EBS volumes, failed API calls.

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