True, but even if he was planning on going out with a bang, it would still leave his followers/subjects in a fix. He did, after all, have the entire town under his thumb. The whole point of Dr. Loomis is that he's obsessed with his patient. He was completely unable to understand him in terms of psychology, arriving at the conclusion that Michael is simply evil. We agree that Halloween 5 is problematic (though I still like it), but it makes sense to me that Loomis is a bit unhinged at this point.