Thanks for replying with your initial reaction. It's good to get your perspective.
Visual tools:
If you are proficient at writing CFN templates or have found another tool to do that, cool. FWIW, our customers tell us they find the visualization useful when onboarding other engineers onto a project and then when they have a split screen between the template and the visualization to see how the CFN template is built.
Yoloing Developers:
Heh. I'm stealing that phrase. But seriously, this is a common concern and a reason why managing accounts and namespacing for dev/test/staging/prod environments is a big deal. (plug - we do that too) At AWS dev managers get daily reports on the cost of each developer's accounts. While serverless tends to be much cheaper for dev environments than containers or EC2 instances, there are indeed ways to run costs up.
Deploying and redeploying:
That's precisely why our CLI enables development against live cloud resources. When you use stackery local invoke, it assumes the function’s IAM role and fetches the function’s env var values. This enables rapid, and accurate, local function development. On the infrastructure side, it's common for our users to make up to 5 or more changes to their architecture in a day. The more you can do with the building blocks, the less code you need.
Thanks for taking a look.