That's unfortunate
180.
You have to be in melee range to use apocalypse, which means you have to be in melee range to transform your ghoul.This is terrible for pvp, as you want to be able to DT your ghoul at the right moments to pet kick and pet stun at very precise times, instead of having that intterupt behind an extra GCD.Not to mention in aoe scenarios, you want to DT your pet to get massive cleave damage, but now you have to build festering wounds to use apocalypse before you can get massive aoe cleaves.Overall it just makes it harder to time dps spikes that are very timing sensitive to begin with.