i'm not sure how this person has their system architected but they should look closely at the 9's the company is talking about. Is it 5 9's across all regions?

i'm not sure how this person has their system architected but they should look closely at the 9's the company is talking about. Is it 5 9's across all regions? Within a single region? What about for the specific service? It really all depends, the post is an over simplification or they haven't architected their system appropriately to cover actually get 5 nines on the host cloud.