On april 10, 2013, I did this zone for the fertilizer drops, which don't drop in CoE for some reason. I got the "ding" sound and the "You have completed Maulic's stronghold" message. My lockout timer remained at 11 hours and 22 minutes however. This zone does not drop exquisite chests regardless of it is a raid zone. Use it for mutables and fertilizer drops only. Lots of old zones no longer drop exquisite and no longer have long lockouts.
Three seems to be no lockout timer now.