The person you're replying to wasn't the one who invoked what you call "partisan thought short circuiting," (which, I have to say, reads a lot like parody). It was me. Occam's razor is not at all about "what I prefer" and is entirely about preferring theories with evidence over those that are lacking (instead of inventing new theories to explain away the lack of evidence).
OK, I get that you're a cryptozoology/"aliens walk among us!" kinda person, but...
A lack of evidence against a theory is never evidence for the theory. It's very hard to prove a negative.