Oh yeah: come on cinyc, common sense. Rioting is always going to get more coverage than clapping your hands and singing. That's not to say that white reaction isn't a concern. We all know the history of the late 60s leading to Mr. "law and order" Nixon.
Rioting gets more negative coverage, perpetuating negative stereotypes about young African-American males. Clapping your hands and singing last week got plenty of coverage to anyone who was paying attention to the news last week.
Why is the white reaction a "concern", exactly?
You said it yourself man. "perpetuating negative stereotypes about young African-American males." a.k.a., perpetuating white racist attitudes. A return to the hard core "law and order" mentality of the 1970s probably won't happen without a rise in crime rates, but it's always a concern.