Don't know about that wait. Guess it just depends on when you visit the Animal Kingdom. I was last there on Sunday, March 19, and there was, it seemed to me a very large crowd, especially around the area of the coaster enterance, but I got lucky I reckon.
At about 1:30 I got into the standby line even though I was traveling solo, and could have used the single rider line, because it was my first time to ride the coaster, and I had read (on these boards), that the line was very interesting. As I remember it, the wait time was posted at 80 minutes; but I asked the CM at the enterance about that wait time and he said it was not as long as posted. I waited less than half the posted time, and it was worth it as the exhibits on line were interesting indeed.
After riding the coaster, I got right back into line, this time using the single rider line, and was on the ride in about five to ten minutes. (No more than that.)
The previous poster must have just hit the attraction at a very bad time I guess.
Anyhow, it is a great ride and I would recommend it to one and all. If you have to wait a bit, well, it's a theme park. lol
Enjoy.