I was at AKV and actually the busses came pretty frequently, it was our timing that stankSeriously everytime we rounded the corner our bus would be pulling out...it became a running joke with us all week. Another bus usually came fairly quickly though, no complaints there. We mainly had issues at park closing with packed busses (again usual I know). I guess after going a few times with a car we forgot how much time the busses actually eat up, especially now with two stops at AKL, even when they are running frequently!
That's our problem, too!! It's our timing, not Disney's. Those busses know when we are almost at the stop....