Can confirm, not even an official tester (just an open beta tester) and have acrued a reputation for having a legendary bug aura that can cause catastrophic and previously unseen edge cases to occur just by opening the software (game)
I mean, no, the tester didn't say anything wrong here, and all of those (and more) are conditions one must take into account if one were to write a piece of software without errors
It's never about whether the tester was wrong, its whether we really needed to spend 30 minutes in a 45 minute meeting about project timelines discussing it.