Interesting, but one has to ask, were they testing the hypothesis or the participants? The participants were describes as both "students" and a "panel of experts".

"54 oenology (wine science) students". Them studying wine science is presumably what makes them experts.

except the study does not test for that. it somewhat interestingly shows that distinct vocabulary gets used for reds and whites once that context is established by a visual cue. that doesn't however mean no systematic difference between reds and whites can be detected.