Yes, and it remains to be seen what the coporate ownership of those stations have to say about it. A local DJ can't just cahange a corporate play list. My local stations still play them every hour. I would imagine only stations privately owned will end up "banning" them when this is said and done.
The DC's are under contract to Sony Music and out of all of the millions of $$$ that their music earned, the majority of all of it went to Sony and other business interests in the DC project.
The DC's sued Sony and in a settlement were given better royalty options, their own record label and a cash settlement.
At that point the DC's hadn't even earned 1 million $$$.
Now this event will actually effect the DC's as it is coming out of their side of the pile being they have their own production and royalties coming in after the suit.
However, entertainers make most of their money by touring, as not all of them write their own music. They need to entertain to make money. The tour costs are outrageous with travel and hotel/motel expenses and sound equipment, stage costs and lighting. Then paying all of the people that do setups and takedowns.
All of that said, no matter what anyone says, it would be highly unusual for any of the concerts to be cancelled, due to contractural obligations by both promoter and entertainers. What could end the tour or cancel shows is for the fan-base to not show up for the concert or to demonstrate their displeasure towards the DC's for their statements.
Since this thing is really snowballing, I'd bet we see the DC's on TV real soon, making a sincere apology and them doing so at the beginning of every one of their concerts on this tour.
But then I'm an optimist in my own negative way.