Why is Machinist DPS SOOOO BAD?

[Heimdalgc]

I don't parse, but someone linked to parser log that had DPS for all classes on the new extreme primals.

Machinist is bottom of the barrel. So bad, that it barely beats out Paladin!

Bard destroys it in DPS and utility! Do MCH players need to wait until 4.1 for any improvement?

Hope it's being looked at. The numbers I saw were frightening. Almost 1,000 dps difference between the best bard and best machinist, and 1400 between SAM and MCH.

And people often say MCH has one of the harder rotations. So why use a class with a hard rotation and crap DPS?