OK. Bad animation. Low budget. They did a lot with it.
Disney spoiled us. I recently watched Fantasia 2000 by Disney after showing the original to many different college classes (Fantasia with Tocatta and Fugue and Beethoven's Pastoral Symphony). I was shocked that Disney put out something so plain and cheap looking as F 2K. F 2K was still clever, but the production values were garage band level.
But it was a different kind of laugh, while H&B, except for the Flintstones, were more of the laugh for laugh's sake,Bowinkle, Fractured Fairy Tales, Bugs Bunny ETC. were more of the "Thinking" kind of comedy.
They both fit certain viewers needs, and some like me enjoy them both. Comedy, like beauty, is in the eyes (or ears), of the beholder.
The things I remember most about the cartoons of the day, are as follows,
No matter what people say, you are never too old to enjoy a good cartoon.