If you have enough scale that could be a problem, cookie cutter more smaller AZs so any one outage is less of numerator of capacity over the denominator of scal

If you have enough scale that could be a problem, cookie cutter more smaller AZs so any one outage is less of numerator of capacity over the denominator of scale. Worth noting that requiring teams to use 3 AZs is a good idea because you get "n" shaped patterns instead of mirror shaped patterns, which have very different characteristics for resilience and continuity.