Before any scientific revelation or discovery can be proclaimed as fact, it has to go to peer review.
In a nutshell, this involves releasing research notes and/or writing a journal, in a respected academic publication, so that other scientists can check the findings for themselves.
This has not yet happened with Dr Ketchum's Bigfoot work. She explained why in the interview with Houston News.
Her conclusions had been leaked by an over-excited colleague in Russia. As the news was out, DNA Diagnostics, Inc., felt that they had to respond with a press release.
It described the findings and called upon governmental bodies to recognize and protect Sasquatch as an indigenous people. But it also states that the study is under peer review in the very first sentence. While the closing statement reads, 'Full details of the study will be presented in the near future when the study manuscript publishes.'
On Houston News, Dr Ketchum told reporters that the publication will be 'weeks' rather than months away.
This isn't nearly enough for armchair scientists all over cyber-space. They seem to be falling over themselves to establish that she isn't a 'real' scientist at all. No-one can claim credibility until their peers have conferred it.
They all seem to ignore the fact that she's repeatedly added the caveat that there's been a premature leak in information, and that it all still requires that peer review.