Correct and that is the point. So whenever someone says full-stack they really mean frontend/backend application stuff assuming an infinitely scalable, redundan

Correct and that is the point. So whenever someone says full-stack they really mean frontend/backend application stuff assuming an infinitely scalable, redundant, fault-tolerant, datastore and compute fabric. The reality is otherwise and I don't see how you can call someone full-stack if they think they can completely ignore the realities of infrastructure. And I forgot security considerations.