See, this is a rational opinion presented in a rational and polite manner. What a novel idea.
Personally, I have no dog in this race. Just going with my gut and what I know, here. If more information comes out which proves this to be genuine, then that's totally awesome. Being flexible, open to new information, and willing to engage in actual discussion (and healthy, resepctful debate) is what we should be here for, after all.
Healthy skepticism is important with these things, though. As noted, there's enough photo documentation and knowledge about the Jein hero floating around out there for someone with ill intent to forge a very convincing fake. That's why we need to be vigilant.
I'm still not convinced. But that doesn't mean I couldn't be, given the right evidence and circumstances.
"The first duty of every Starfleet officer is to the truth", etc., etc.