[2021] Medium task: "Can't touch me" problem.

The medium task "Can't touch me" wants you to kill Dharok, Verac, Torag and Guthan without letting them attack you with melee. Sounds simple right? Just freeze them and farcast. The problem is their spawn location is random, about 80% of the time they pretty much always get a hit off on you as they spawn making this task stupidly rng based. The other 20% of the time they can get corner safespotted on the coffin. I initially thought due to the wording of the task that each brother could be killed on different runs but this didn't seem to work. It seems to want you to kill them all in the same run and if any gets a hit on you its back to square one. Or am I missing something and being stupid?