The top 1% earned 22% of all reported income. But they also paid a share of taxes not far from double their share of income. In other words, the tax code is already steeply progressive.
Then you and the author have no trouble with Obama's tax on fat cats if it will bring in less than what people think. I say bring it on! It worked for Clinton and has been a COMPLETE FAILURE under Yogi's tax cut since we have only gone into DEBT for 4 TRILLION since he took office.