The tech stack was a weird quote. This is significant:

> In theory it's microservices, but the reality is that there are so many circular dependencies that it works like a monolith

But lambda/go/dynamodb does not force this situation.

True, but it doesn't mean you can code it to be in this situation.

If all your life you coded monoliths, you can code monoliths using Lambda functions too, there's nothing magic that will stop you from doing it.