I don't find anything insane, but the defense he is presenting is similar to that of insanity.
I didn't read anything in his report that one couldn't glean from open conspiracy theory and UFO/alien threads or old USENET logs.
Accordingly, if somebody asked why he was hacking, given the primary CT of UFOlogy is to present a coverup in wide open, covering up something so secret that nobody can figure out if its true or not, even casting doubt upon those within the institutions reportedly associated with the CT, then his story is a fairly well contrived defense.
In other words, he found a defense that is unprovable but commonly accepted by a significant percentage of the public.
He may have been attempting to determine launch code sequences and convey sensitive information to enemies of the Constitution, yet, by claiming he simply was looking for UFO CT verification, he's viewed as a harmless, perhaps stumbling idiot.
For a real enemy, that is just the type of perspective he would like his target to believe, once his activity was compromised.
Excellent points, imho.