I would not have predicted the result but evaluating objectively the brief is to judge whether the bike is better than it competition.
1) Thruxton R - Yes this new model is better than the competition in the retro cafe racer class.
2) Africa Twin - No, better bikes is class (eg. Triumph 800 XCX)
3) Explorer XCA - No, better bikes in class (eg. KTM SA, 1200 GSA)
4) S1000XR - Possibly, main competition is Ducati MS and Superduke GT
5) XDiavel - Possibly, competes with the other cruisers on the market and I don't know them.
6) KTM GT - No, as a sport tourer the seat needs to be a lot better see S1000XR. Also the Duke R has already won so they probably did not feel it is not really new.
From the above the Thruxton is not such a surprise.