A large part of my work is writing about and sharing the Vuo story. We believe there are all kinds of people who will embrace Vuo once they discover it’s out there. So, my efforts include helping create the Vuo website, writing press releases, submitting conference proposals and generally figuring out how to create excitement and how to spread the word about Vuo. I occasionally help out with Vuo e-mail support and I'm part of the think-tank called "Team Vuo."
Yes, "a less restrictive shell command node would allow much more custom / powerful things ...", but that may not be good in all cases. For example, an unrestricted shell command node could delete all files in the user's home folder, or remove, copy, or scramble user data. It would also be more user-friendly to have a node specific to iTunes than for people to have to use the shell node with osascript.