Originally Posted by
Chai
No but they are SAYING its due to DPS lag.
Eladrin clearly stated that the nerf portion of this change was due to the fact he felt TWF was too powerful compared to THF:
"I won’t hide that these proposed changes do reduce the effectiveness of off-hand attacks, which reduces the two weapon fighting style’s extreme dominance over two handed fighting. Skipping the extreme outlier of the Epic Sword of Shadows (we got a little carried away there, didn’t we?), estimated damage output over time for the two styles should be extremely close to each other if we go this route. (Which style is superior ends up being heavily dependent on your character's abilities.)"
If Eladrin would have wanted, he could have fixed DPS lag without nerfing TWF DPS. He felt it was a good opportunity to do it now since he was playing with the values anyhow but it was not necessary. The change that reduce the likelihood of DPS is the removal of detection checks for the off-hand, not the nerf to TWF DPS.