User blog comment:Noctosphere/We finally get a Human as a big bad. Your thought?/@comment-34326521-20160530005205/@comment-34326521-20160530010151

Well, Henriksen thought Sam and Dean were doing more harm than good, and Gordon was certain that Sam had opened the Devil's Gate back in season 2. Toni thinks Sam and Dean are doing more harm than good, and that they unleashed the Leviathans, et al., on purpose.