Sort of… it’s kind of a hard p give an exact answer. By the time you dot up the first enemy it’s at least 3 GCD which isn’t a lot of time for the tank to build up threat on the second and subsequent targets. Warlocks gain a ton of threat or none at all depending on level/RNG. If I’m running with guildies I’ll dot everything and just hellfire till they or I am dead. Then again I’m only lvl 32 so who cares.