This topic is very entertaining, some of you come here to talk about racism and the elephant in the room. Yet I see comments that clearly correlate conservatives (not the party please) to racism. Comments such as Canada is not racist because "We are talking about (...) A liberal, progressive country." have as much prejudice as any possible racism bias in the NHL. Many abolitionists around the world were conservatives. Anyway, this is not about politics..
Back to the topic. I think the idea of subliminal racism can be partially blamed for PK's treatment by the media in general. IMO, an overwhelming majority of the NHL people (players, owners and so forth) are not racist but, some of them, there must be something working in the back of their minds that might trigger some sort of racial bias. I personally struggled to accept this idea of subliminal racism but after seeing all the praises that Doughty gets and the repeating mantra that Subban is high risk, high reward leaves me no room to conclude otherwise. I also believe that the fact that Subban is outspoken, he will generate more discussion around him as dlbalr said. I think these two things together help to explain much of the discussion around Subban.