What's funny is kind of the reverse is also true: when people were given the exact same cola but one was labeled Coke and the other Pepsi, not only did they say they preferred Coke, but fMRI brain scans should more prefrontal cortex activation for the Coke as well: https://medium.com/@marketingoal/the-pepsi-vs-cola-cola-expe... . That's the power of branding.
That blinded test isn't about telling the difference though, it's knowing which is which, a significantly harder thing to do without practice. And I don't know how many of the participants regularly drink any of the brands, which makes identification even harder.