To be honest, they were made into irresponsible parents and it was never really brought up.

In some ways, yes. In some ways, no.

Humphrey was ruined in the dinosaur movie and Kate seems to lack the more sassy and responsible personality though I do like how Kate is more open too.

How do you feel he was ruined in that movie?

Humphrey barely did anything but whine in Dino Digs. At least Kate's more open at trying new things.

He did save his family from the golf balls at least.

Yeah though I think I was referring to the personality being gone. Thinking about it, the only thing that I liked was that Humphrey was open to accepting a new member (the dinosaur) to the family.
It was also the only good time where at least one of the puppies did something good by talking to the family about being more accepting to new people maybe.

YES big time.

because this movie is for kids anyways and its worse as ice age movies

now you mentioned it...yeah i say they are ruined. but not entirely for me if I recall.