Someone paid them ?!
It's not clear if his friends paid the actors, but presumably they did (or else, they just enjoy spraying glitter all over their car/bed for fun).
At the end of the day, the result was that he paid money in exchange for videos of black people pretending to be thieves.
Some are less overt: Was he fooled by the actors because of his own preconceptions about what a thief looks and sounds like? He had the full GPS tracking and footage, after all. Did he ignore evidence that might have clued him in that it wasn't real, because of those biases?
By setting it up so they get paid if an only if it gets stolen, did he unintentionally incentivise his friends to fake the footage that matched his own preconceptions of what a real thief looks like?
After all, we know he was stolen from multiple times. We know he has footage, and knows what they look like. Was he convinced because of his preconceptions?
That's what we are talking about here. Once it's revealed it's fake, we suddenly are approached by a whole tangle of messy racial bias in how this made it from conception to production to consumption.