There is no doubt that as we continue to move further into cloud networking and infrastructure our environments are evolving daily. This rapid pace of change is failing to keep up with the expectation that your team knows "how it works" and "what it looks like". Keeping network diagrams up to date is often the last thing on most engineers mind, until the time you need them which in some cases is too late.
Manual creation and updating of diagrams are tedious and time-consuming and not that effective with continuous change. These days we have the ability to automate the process of generating and drawing a diagram, getting the information straight from the source of truth.