Correct.
The TWF nerf had lag reduction listed as a reason for it being implemented, but testing demonstrated it was ineffectual. The devs added the above in response to an industrous bunch of players spending some of their time figuring out what was behind the dps lag. Testing after the server settings were adjusted demonstrated that the server setting change was effective in dramatically reducing dps lag.
Moral of the story is...
Lag should not be addressed by altering how the game plays. It should be addressed by efficiency gains in software and upgrades in hardware.