Best DPS class in the game?

[Kevee]

(look at this for instance)
FFXIV Logrep

Is this a joke?

This factors in the whole dungeon(aka AoE situations), and even then there were BRD runs that were better(without BLM, with MNK), and a SMN/MNK run cleared almost as fast, and MNK is the worst AoE in the game, and SMN is "supposedly" weak AoE.

Edit: and even when you look at Wanderer's Palace(level 50 dungeon), many groups scored more/faster then a BLM group.

All of the data on that website is meaningless until we get a huge sample size, because it has no standards. It has time, and some arbitrary score. It has no indication of gear, pre-made vs, pug, etc.