The people who are trying to commercialize the product? It's interesting that with all this money all they do is send "their developers" into the mailing list to push the product and everyone else in their own direction.
You asked who is pushing this. The answer is people who are paid full time to work on Git. These are Git developers. Their names are mentioned in the article, it is not hard to look up what these people have done, what they are doing now, and who they work for.
What are you trying to get at? It's not a conspiracy theory, it's people who just want to be able to be more effective at getting things done.