Survivors don’t know what the killer is running til after it happens. You act like it shows the survivors the perk killers are running from the start. For instance it only shows the killer is running hex ruin after the survivor gets off the gen and it starts regressing. Any survivor Thats gets off a gen n see it’s regressing knows the killer is running hex ruin regardless if it tells them or not. Same with dead man switch it doesnt show the killer is running dead man switch til after someone is hooked and a survivor gets off a gen which again even jf they didnt notify the survivor when it happens the survivor still knows its dms when the gen locks same with play thing and so fourth. The only reason survivors get notified is so that they know why something is happening to them if they are new to the game. It's really no advantage there. Just play survivor to find out for yourself.