"Barriss allegedly then called the emergency 911 operators in Wichita and said he was at the address provided by Viner, that he’d just shot his father in the head, was holding his mom and sister at gunpoint, and was thinking about burning down the home with everyone inside."
That's a situation where if it is true somebody is likely going to end up hurt and I suspect the police officers tried very hard to make sure that wasn't them.
And so innocent people paid the price for a bunch of idiots duking it out over a $1.50 bet.
The part that makes no sense to me is that swatting is even possible, there are enough indicators that the call is not originating from the location indicated by the caller.
I still think this should not have happened but there is at least a little bit of leeway on seeing how this could have happened. Keep in mind that the swatters had a lot of experience in tuning their story for maximum effect on LE. This or something like it was their intention all along.