One thing I hope they fix, which had been getting better the past few years but was horrible this year, is the hurrying of people through the house.
At least they don't have flashlights any more, but several houses (every night we went) had people yelling "please keep up with the person in front of you, no empty space" (particularly Nightengales) and being told to "keep moving" with them pointing/waving in the direction you are to go. It's a conga line, I think I can figure out where to go. And nobody is moving in front of us, stop screaming at me keep moving.
It was REALLY bad this year.
Also, there were some of the people right in scares. Or standing right next to or under puppets. They thought they were part of the scenes. They had been pretty good at having them at room transitions only, but this year they were everywhere and really in your face.