The author is an idiot, like all social utopists. The European model is a model for failure. Government imposing restrictions on work hours, yet demanding funding for every social program under the sun, which is taken from the employees and the overtaxed businesses, is a recipe for disaster. You can't reduce productivity yet demand more money for healthcare, social security, education, etc.
While the Europeans do have less work hours, they also have less opportunities. Their gas prices are much higher than ours, their housing prices are higher than ours, their utilities are higher than ours. So to compensate for these costs, they do without. From talking to some German associates, they often rationalize this situation and attempt to claim that this is how they choose to live, but in reality they have simply prioritize other necessities, due to the government restrictions, over the luxuries we have.
We work extra hours because we can and because we want things, and those who demonize consumerism, neglect to tell you that this is what drives our economy, it pays for all of their ludicrous social programs, and it is a factor influencing our higher standard of living.