As I am watching this video about the use of the Clojure programming language in TV sports production I was surprised to see a bunch of Heroes screens popping up starting at around 3:15. Apparently the initial use case for the tool was Dorm in 2016 (I think, based on the project starting date mentioned and the screenshots). The tool was used for the drafting screens (this was before tournament drafting was added in-game). It was then developed further and used in all kinds esports and TV sports events.