Yes and maybe. Some laws, like murder, robbery, rape, etc., need to be permanent. Legislators waste enough time and money as it is, I don't want to pay them every 5 or 10 years to go back and renew hard laws like murder, robbery, rape and the like!!
However, there ARE "laws" that I agree need to be reviewed periodically that the sunset provision should apply to.
So you'd rather that they have time to make up more useless enormous costly bills? Like, for example, Obamacare? Cap & Tax? Financial “reform”?
Personally, I LIKE the idea of keeping them too busy to have spare time for nonsense.