Well, many people seem to lack "common sense", of which everyone has their own definition. And absurdity is in the eye of the beholder.
I don't agree with what this company is doing, stealing content from a commercial product and making it free. But I can see they're making a point, as a kind of perfomance art and social criticism. They're brazen about its controversial nature, and perhaps the free content will benefit someone who doesn't have the means to access this knowledge.
It also makes me question, how will such knowledge production be funded, if not as (highly priced) commercial products? If everyone started stealing and giving away knowledge for free, how can it be sustainable? Is it even possible to "steal" knowledge? Well, yes, in the form of information/data - but, if it's digested and re-presented, as they have done here, does copyright extend to such works?
Perhaps their goal is to raise such questions in the audience.