I think all the hints of familiarity between Erynn, John, and Iris are a red herring. It's a conclusion that I think the dev is trying to lead people toward but it can still be a misdirection. It's not like that hasn't happened before (Ex: The cliffhanger of AWOL Erynn and the Dumpster Girl)
Also, I think there was some dialogue between Erynn and MC where she said that all she knows of her father is a visual description of him and his name. If we're assuming the visual description is of tall, blonde tattoo'd man named John, then it should have set off some major alarms with Erynn. But it seemed like he reminded her of someone she already knew before and she never met her dad.
But the big flaw with the Papa John theory is his tattoos. I made a post about this
a while back. In Chapter 10, the tattoos between John and Melissa's flashback man are distinctly different. But then, even present-time John's tattoos aren't exactly consistant either. Either way, I don't think it's a lock that John is Erynn's dad. Erynn's dad could be that blonde talent scout in the jacket for all we know. The misdirection and guessing games are part of the fun with this dev.
