As an analysis it's a little all over the place. The first half says "this is why Piketty is (probably) wrong about there being a problem" and the second half

As an analysis it's a little all over the place. The first half says "this is why Piketty is (probably) wrong about there being a problem" and the second half saying "and he's wrong about what we should do about it, here's what we should do instead". Surely if there is no problem, the there is nothing which needs to be done about it?