This needs to be addressed, it removes the mob with the best drops for nearly every class and makes the signature quest line impossible to complete.
Thursday afternoon and the issue has not been addressed. Guk: Outer Stronghold is broken / the tso Signature Quest Line can not be completed and all the good loot is MIA. Lunchmeat and Frupdor are not spawning.
I think the issue may have been that people went back to some previous instances that were cleared up to the point where they couldn't progress further. In any case, I can confirm all is well again with Outer Guk, just cleared it a few hours ago. Thanks for getting it fixed up.