Oh, I don't know. When we were there a few weeks ago, that left side line was really long. The CM standing there just pointed to the right, so I went right. I got a ton of dirty looks, but I walked directly onto a boat...while the left side had lines waiting to get on boats. People tend to be lemmings...they see those in front of them go in one direction and they follow along.
And that whole move all the way in, filling all the spaces??? Almost got my head handed to me at the Laugh Floor. It seems that most guests just headed right down the middle, leaving a ton of room on the left side..as usual. So, our group moved down the wall to fill in the space as directed by the CM. Well...I had one gentleman, and I use that term somewhat loosely, turn to me, glare at me and say the line forms at the back!!! I politely explained that the CMs had just announce that we were to fill in all the empty spots. His snappy comeback??? "yeah, whatever. line still forms at the back.''
And bag check??? Got a ton of dirty looks as I walked up to the security guy, bypassing the long line on the other side. It seems that families tend to clump together and figure they will all get through faster if they are on the same side. Nope, doesn't work that way.