Thank you SE!! (DF lockout)

[LalaRu]

...the max amount of dungons i can even do is about 4 a day conting the avarage que as a dps is way over a hour even...

On that premise, I think you are safe with new mechanic. Even if it happens to lose duty twice out of 4, you still have got no penalties. The only worried have to be the players that really are playing withdrawal duty. Most likely tanks and healers, don't think a dps will withdraw at ease on DF.

Edit:

... i have weeks where i have to withdraw 11-12 times for a logical reason

On second tough.. you before told us it happens you go to make it 12 times a day, and now you said that are no more than 4... Are you sure you aren't making things up? That's no good karma.