Yeah as some of the responses to your reply said, agreed, and I've always found value in unit tests, and the "too many deployments and not enough development" comment from jsight rings loud in my head. Deploying to a real non-prod environment as a "test" can be fine for a team, but to do so while not testing for how you expect the code to behave... maybe that works for some folks and if you're moving super fast, but I wouldn't be super comfortable with it myself.