Just so we're understanding each other, I'm not justifying LLs existence here. I'm just using this one use case and saying that overall it appears to be negligible in terms of wait time JUST for Pirates. Doesn't mean that I don't think they should remove it complete from the Parks and have just have standby, because overall they probably should but probably won't. Just means that I look at the data, as I often do since data analysis is part of my profession, and note "hey this didn't really have as huge of an impact that everyone claimed it would when they added it".
Also "worse" is relative here, as an extra 2-3 minutes (or even 5-10 minutes) of waiting in a 12-16 hour day at the Parks is by definition negligible, as its at worst only a 1% increase in wait time over the course of a day.