Heck no!
I think his expectations of a man's role as a parent are different from yours, and also just about every one else's in 2012 (or 1990).
He is parenting the way he was parented, with the mom doing the parenting. However, that does not fly anymore, because both parents work. Also, what dad would WANT it to fly, and miss out on all the fun and crazy stuff that happens? If my husband didnt change diapers, he wouldnt get the joy of complaining about it to his friends. :)
I'm disappointed in your husband and trying to think of a positive solution, because you need to be positive and constructive to help him be a better dad.
Can you talk to his mom? His friends? Do OTHER people he knows think its ok for a dad to say he doesnt enjoy parenting and just not do it?
Can you schedule some time that he is alone with the kids and HAS to parent? Take a part time job every Tuesday and Wednesday night and then he has to watch the kids?
Its hard for him to parent when the two of you are together, because you are and have been the main parent. Also, you do things differently and may inadvertantly undermine his attempts.
In the summer, I work long days and my hubby picks the kids up from daycare and gets them dinner every night. He is so much more confident because he has to deal with problems by himself - and he feels proud that he can do it.
Also - maybe schedule a family fun day every month - some all day outing that all of you do. We go to state parks, festivals, zoo, all together and the only rule is to try to be laid back and have fun.