Here is some food for thought.
"January is slow season"
That may have been the situation in the past. OK, we know that was the situation. However, why does anyone think that it would continue as the slow season? More people are attending Walt Disney World in January. Did anyone try to book a hotel in January or February? I made a quick trip down on Jan 8-10 and Feb 5-7. 10 days prior, I tried to book hotel rooms. There was almost nothing available. Campground and suites. My Jan trip I could not get anything at all except FW the day I wanted to book. I checked back the next day and could get a water view room at Carribean Beach or a campground spot. I took the CB room. The next day was down to FW only again. My Feb trip I could get 2 nights at AS Sports when I wanted 3 or a suite at Coronado or Poly. That was it for a Thursday night.
January was definately slower than Christmas week. But that does not mean it was slow.
"Disney is manipulating line times"
I would hope that they are. I manage restaurants and nightclubs. I am responsible for making sure that there are lots of staff members there for Saturday night. But on Monday night I will have only 1 bartender on. If it gets busy, I still only have 1 bartender to help the guests. But my goal is to increase sales on Monday night, so I hope that people have to wait for a drink instead of having a bartender getting paid to play on his phone.
In the restaurant, if it is Tuesday night, I might have 2 servers on duty. If 8 tables walk in within a few moments, some of them are going to sit and wait. But I am not going to open both dining rooms and staff them both so that you can get instant service. I would be unemployed if I did. It is my responsibility to schedule for the goldiloks spot. As a shareholder, I would be upset if Disney did not operate that way. You are going to a theme park...You will wait in lines.