EDIT: stuff like this isn't that new. GNU Parallel has that infamous "cite me in your work" long ramble every time you invoked it until you used a flag claiming you'd cite them. This is an ad which makes it commercial may be, potentially raising a different level of ickyness at least in some people's minds, but it definitely is of the same kind of behavior.
At the very least, if you're paying canonical, that shouldn't be there.