Maybe you could try judging the evidence instead of the person? Most of what she says - including the critical phrase you took issue with - is direct quotations of the science. She does not claim to be an expert, she relays the information from the experts without any commentary. Then she talks about how those conclusions make her feel, and what she would like to happen as a result.
I understand why you would ignore those last two parts - personally, I find them cringe worthy (she's a teenager after all, that's just how it works) and can see the harm it does in creating responses like yours*. However I don't remotely understand why you don't want to read up on the science?
*I assume on the flip side it inspires people, and from the vibes in here I get the impression it appeals more to parents and particularly grandparents, who feel she makes the issues feel more tangible - personally I don't need that