No, I think that's a misunderstanding of what people have said earlier, Tymber. The consensus is that Pike isn't a brooder. Some people may think his constant light-heartedness is a little tiring.
I don't think so, myself. I think we have seen more in Pike than just light-heartedness. We have seen real concern and compassion for those he loves. We have seen gentle nurturing of Ember when she needed it, of the tuftcat kitten. . . We've seen him grieve while dancing for Skot, and when Cheipar died.
I agree with NightAngel-- Pike is simple, and uncomplicated, and that's refreshing. But he is a rounded character. There's more to him than "let's eat dreamberries and have fun."