No reserved capacity (pay for usage), so it works for boot strapping startups and provides superior resilience while being extremely simple to setup and involves almost zero maintenance or patching (even under the hug of death). I don’t understand settling for less (and taking longer and paying more for it).
This writeup seems like a useful contribution to spreading this knowledge that you think every engineer should, somehow, innately be born with, to those members of the development community who missed out on picking this stuff up in elementary school.