This is not remotely true. You hear about the big ones, DMCA, PATRIOT, etc, but most legislation is routine stuff that keeps the country humming along.
Saying gridlock in government is a good thing is like saying gridlock in Google's management was a good thing. We need government and we need effective government.
I don't see how incomprehensible amount of legalese can help more than it hurts.
Sure there are some useful gems in legal system, but most of the laws are more of a burden.
Yes, we need government, but we need smaller government and smaller government is more efficient.
Government gridlock reduces government and makes it more efficient. Really useful bills still can go through gridlock, but amount of legal junk is significantly decreased.
Less legal junk output results in improving economy. You can actually see that unemployment rate started to improve in 2011 - the year when Republicans took over Congress while Obama (Democrat) still holds President office.
Comparing US Government with Google is not correct, because US Government is much bigger and is pure monopoly, while Google functions in competitive environment.
Fortunately last couple of years US has government gridlock and that helps. A lot.
I hope gridlock in government would help again and SOPA bill would fail.