I mean, the whole point of that strategy is to provide statistical cover to prevent the detection of forming riots (or attacks) ahead of their actual nucleation

I mean, the whole point of that strategy is to provide statistical cover to prevent the detection of forming riots (or attacks) ahead of their actual nucleation and rioting (or attack). Effectively, you give the appearance of spontaneous formation of riots out of a near-rioting background, even though the actual formation still takes coordination ahead of time, by simply having a lot of times you don't actually plan a riot, you just say all the words to (preferably to random people). So I wouldn't call it 'by mistake', more like 'by design'.