Hmm, interesting point. Where we draw the line? Testimonies/memories/personal experience can certainly secure a conviction in a human court of law. This exists "in abundance" for sightings/abductions/encounters...so are we hypocrites? "Evidence is permitted If-and-only-if it conforms to our priors", or we accept the testimonial standard in play?

For me, it comes down to what you think personally. That's the discriminating factor in such an "contested" topic!