The only fix available for big companies doing anticompetitive practices is splitting them. The question of "are they too big?" is basically interchangeable with "are they harming the market?"
Well, ok, there are others fixes around, tried more often. They have an unbeatable track record of failure. Thus it's perfectly fine for the author to ignore them.
Well, ok, there are others fixes around, tried more often. They have an unbeatable track record of failure. Thus it's perfectly fine for the author to ignore them.