I don't agree with the posting. In my opinion, UML had rebirth in 2010s with the growth of popularity of PlantUML. See that PlantUML is referenced already in this thread, and to positive sentiments already expressed, I can add the notion that PlantUML fits much better, than most of earlier UML related software, for the purpose of network modelling. While original UML standard was not specifically designed for representing networks, PlantUML has network diagram type built-in. And extensibility of PlantUML allows to cover many use-cases beyond that. I imagine that with a certain amount of tenacity applied, it would be possible to create PlantUML library for "masala diagrams" as well. Also, "agile" shops usually love that tool, since it requires minimal learning curve for any person on a team to start producing nice-looking diagrams.