Off the top of my head, I can think of way more than "four reasons I can imagine [I] would want to show someone a graph." How about "look at this interesting pattern in the data," or "look how data set foo correlates with data set bar?" Neither of those fall under "help me figure it out", and they're both telling at least as much of a story as "everything is going great".

Also, while his graph is somewhat more pleasing to my eyes than the original, it still doesn't tell me what I really want to know about that data. I have two questions about that line: what happened with that first really big spike, and does he think that the two similarly-shaped regions that follow it represent the beginning of a cycle that we might see again. His graph is called "Rapid Traffic Growth", but I think there's a more interesting story in there.