This is the kind of thing you hear a lot from contactees, they almost always say that aliens have some message about humanity’s spiritual growth and their unwillingness to contact more of us until we’ve reached a certain level of emotional maturity.  I know there’s certainly a lot of things that humans don’t get right, but that still seems a little vague to me.  Then again, that is the kind of thing you’d hear from any kind of Zen teacher.