I guess what you have proven is that your Biggles is not the same Biggles as the event's Biggles. That is a different Biggles entirely. Just like more than one person can be named John, but that does not make all people named John the the same person.

It was worth trying though. I guess there was a slim chance Arthur might have written code to run through the villager array and check for a villager named Biggles during the event. The only way to know for certain if this were the case would be to ask the programmer (they won't talk) or do your experiment. For this reason, I believe your experiment was worthwhile.