Good idea. In the finance space, I did something similar to understand FIX message log files; there's a lot of back and forth among algorithmic trading engines, the GUI, and the stock exchange that can be confusing, and some visualization can help give the big picture before one delves into the multi-gigabyte log file.

I remember NewRelic had something similar to reverse-engineer cloud architecture, which I thought was an awesome idea, too, in this age of microservices. There should be a startup around that idea (minus having to use NewRelic) if there isn't one already.