Question about Venta Cemetary's foes using Interrupts

Ok, so i was doing Venta Cemetary and was using the disarm trap skill, that has 2 secs cast time.

Figure this, i get Interrupted 5 to 10 times in a row O.O WTF
Yeah, i try cast the trap disarm spell, get interrupted, immediatly try cast it again, get Interrupted immediatly again, 5 to 10 times in a row.
Depending on the mob formation this happens pretty much with evry mob.

I am suspecting its the Kournan Bowman, cos i always saw arrows flying and took some dmg evryime.

Have the foes in that mission been upgraded with much more Interrupt skills ?!
Is one bugged that it can be re-used by a foe immediatly?!

"Skill. You disable an activated sentry trap before it discharges. You are easily interrupted. "

That's why.

"Easily interrupted" means that any attack which hits you while you're casting the skill will interrupt it.

Every time you get hit you will be interrupted so it's basically useless unless you are 1) not being focused at all or 2) cast it before combat. There are rangers kills to prevent your traps from being easily interrupted, unless they have been changed. Haven't played a trap ranger in years :S

Here is how to avoid this, very simple. Get aggro of group when y are near a trap. Run in to grab aggro then run backwards so the bowman attack your team. Now run back in range of the trap and use the skill. Completed the mission getting rupted once

Or you could, ya know, just flag the heroes ahead. Then stroll in and disarm traps at your leisure.

Never payed attention to the full meaning of You are easily interrupted.

Now that i experienced the full meaning of it, i shall pay more attention to it

tnx for the replies.