The original idea was good. A simple list would have been hard to understand. It forces the reader to build a mental representation of the underlying network and it’s not something our brains are very good at. The Thomson Reuters infographic is hardly better though. As it is, it looks like a spaghetti plate.
Representing relationships between a few entities can be tough. Especially when the relationships are numerous : in this case, you can easily end up with a result which is hard to decipher, like the aforementioned example. Picking up on this problem, Mike Bostock used the Thomson Reuters data to build a network.