Those are perfectly natural things, but in relation to her online persona and how she portrays herself, they're chalk and cheese. I think she'd get more credit for admitting to her mistake and explaining why she felt so different about that particular lie above all other very similar lies that she's been privy to over the years in this world of Bigfootdom.
For whatever reason, she chose to react to the whole thing as though she were having a meltdown. That to me isn't exactly the height of "critical thinking."
I've got no issues with Sharon, I don't know her, but in terms of the person she's trying to portray herself as being, I don't buy into it and I think it's all a bit of grandiose posturing. That's not to say I think she's pretending to be a sceptic or anything, but I think she's very much in love with the idea of her being this intelligent sleuth who uses science as a weapon to fight fraudulent behaviour.