… how do you stddev on multiple choice…?
But take the rank 2 emoji, "gust of wind"; I would say the top 3 choices are all pretty valid … depending on the context. The thing about emoji is that they're highly contextual. If I see "eggplant" on a grocery list, it might be just an eggplant. In other contexts … well. Similar with "persevering face"; I've probably used it for every option listed, depending on context. There's not always a 1:1 match between emoji & the exact thing you're trying to express. Words have that problem, too.
They list three emoji under "the most confusing new emoji" … they only surveyed those three. (The text is explicit about it, but the headline is clickbait.)