It just means you don't have to worry at all about managing the servers, using thing like AWS Lambda which handle it for you. Generally these services will scale up and down for you as well.
It's actually a boon to entrepreneurial types who really do know the full stack inside and out. So many startups these days are "slap a web or mobile app in front of a manual process", so people who really do understand computation and all the things computers can do have less competition.
Having a t2 up the whole time would have been way more, plus it would have been subject to our Chaos Monkey.