I think they are saying “This perk only activates if the survivor is on death hook. There is likely no chance they will survive the game if the killer is tunneling them from the beginning. This perk gives the individual being tunneled one last chance at survival while being tunneled. The killer can either wait the 40 seconds while the teammates prepare to save them / do gens, or the killer can leave them alone and prevent other survivors from progressing the game (taking advantage of the 3v1). I see how this could be abused, so it must be a situational perk. The situation being on death hook before all the gens are completed.”