That's an important point. People who make DPR-related claims are usually comparing against the usual suspects--Sorcadins chain-smiting, GWM/PAM barbarians, etc. In my experience, those "pure damage" feats aren't the first ones chosen and most people aren't that DPR focused. So the monk is right in the fuzzy band of other classes when played with normal people. Only compared against the DPR-builds does it fall noticeably short.