DRG is unbalanced and desperately needs a buff.

[Soukyuu]

If you want to make substantiated claims, you gotta back it up. The onus is on the OP to provide evidence for the claims she makes. You're welcome to support her with the evidence if you wish. I want to see the numbers and incite others to do the same for the opposing arguments.

You are welcome to take a look at this and this thread. People have posted enough parses there.
From my part, I can only say that because DRG and MNK don't have hate reducing skills, you can also look at the hate indicator.
I'm consistently 2nd on single target fights even with GL loss unless
a) there is another decent monk in the party
b) there is a brd/drg with better gear in the party.

I have also done runs where we purposely tried to steal hate off the tank during ak/wp runs and I stole it most of the time despite the DRG having the myth body.

9 GCDs is a long time to be operating at a reduced DPS for hard-tuned content

The buffer you build before losing GL3 is usually enough to still come up higher than the rest.