[kevlarrelic]

That's not exactly what the paper says:

(From Study 5 discussion) These results are consistent with the idea that, while those with low expertise engage with the domain hedonically as a default approach, this is not experts’ default. Second, rather than experts being inevitably numb, these results suggest that it is not the acquisition of knowledge that leads to numbness, but the application of that knowledge. Indeed, when expert’s attention is redirected toward the hedonic aspects of a stimulus they can regain their feelings.

So, as I understand it: beginners focus on enjoying the experience by default, and experts engage intellectually by default. And experts who were told to just relax and enjoy the experience had the same emotional experience as beginners.