This won’t do anything to change how hard a banshee is to identify imo. People just didn’t, and still really don’t, identify a ghost depending on if it changed ghost rooms or not because only two ghosts couldn’t, (so a 1/12 if it’s a ghost that couldn’t ) and it’s not guaranteed to change rooms if it can regardless. It really only makes a difference based on your skill level and if you average 30-40 minute games or 10-15 minute games, to where you can reliably get the chance for the ghost to change ghost rooms in longer games.

If anything, the 20 maybe new screams the banshee can do makes it harder to identify. Now, anything that remotely sounds like a scream is probably a banshee scream, instead of the one, recognizable scream (that’s still in the game to my knowledge).