Forbes blog flunks rhetoric

Waxman-Markey flunks math. Points made:
1.) Rolling brownouts occur right now
2.) We get much of our electricity from coal
3.) We don't get much electricity from wind and solar
4.) Therefore, we shouldn't try to get more electricity from wind and solar.
This is akin to the equally dishonest yet slightly more coherent argument of 'Oh my what shall we do when the wind stops blowing and the sun refuses to shine?'

Because we don't have much solar and wind power generation currently, we should not attempt to increase the percentage of solar and wind either. The argument put forth here involves an additional layer of weirdness, namely that our current electric grid isn't as good as we might hope, so therefore we should make sure not to change anything about it. Why does this make so much sense to some?