I run a few serverless stacks on AWS Lambda, have been for years and slept well all the time. Serverless is forgiving. Things heal and don't stay dead like it can happen with anything that carries state like a container.

That said, I do prefer the development model of containers. Run them anywhere. That said, has it's own limitations. For example, he claims to be able to run state within container. Doesn't make sense if you want to scale out. Persistence is a problem. You can't run DBs on ECS Fargate for example.

And the worst aspect of running containers is: in bigger orgs the standard will probably be K8s. And that has nothing to do any more with the simplicity of containers as mentioned in the article.