maybe you could start a casual discussion about, he's not seemed that happy here lately. and ask what they are learning/doing while you are talking to them. Is there one of his teachers you feel more comfortable approaching?
DD's kindy has a play based program, where they follow the kids interest, but that mostly seems to mean that they allways play dolls . But they do painting and playdough and other stuff as well.
There is a new leader and she has started doing the alphabet and dd loves it. They also learnt a song in another language the other day and dd loved that too. I do think they want to learn at this age, but I wouldnt want it to be sit down and listen type of learning.
I like the sound of yours Ubba82 that they teach them sharing and manners. I think its so important, because thats what I would be teaching her if she was with me, but I haven't seen it taught in any of the kindys I looked at.