I have to agree with everyone else. While it might be even more understandable than an ordinary event, look at how much room it takes! An entire screen, and for what looks like one event!
Assuming you can scroll horizontally and vertically, a full game like that would have a massive "field" of randomly placed flowchart tools. Events at least are linear - you can only scroll up and down, not to mention more compact - so it's a lot easier to find things.