Just read your comment and had to find your article! Great stuff again :D
By the looks of it Carr is a real beast. Thinking about your comparison it is fair to consider the weight of the athletes but it would also be interesting to see the acceleration stats as I think that this is a far more important attribute to have, especially in explosive sports like rugby or football.

I think it is comparable to cars: An electric vehicle will outpace almost every sports car on the first few meters but will definetly loose if the track is longer than 1 km. (Depending on the cars of course, but I am speaking of normald day cars :D)