To be able to fully access the validity of those findings, one would need to better under exactly who Beyond Trust is (the name does not inspire confidence), and the means that they used to come to these conclusions. Obviously, they do not have access to all data involved, and the sector of data that they do have access to is likely weighted by the nature of those that might have sought help.
Since a great many people are their own administrators, it is obvious that simply being an administrator does not make one infallible. Perhaps this would be more applicable to a business network, with a variety of users involved, but for the majority of us using private computers, these "facts" have little relevance.
EDIT: It would have been more accurate to say that computers would be less vulnerable if there were no people involved at all, but I'm not ready for computers to take over the world.