My guess is they were called for abuse. If few calls were made and it was pushed under the rug.
There are two possibilities:
1. There was no “swatting” as alleged. It was a routine visit based on a complaint and Buttguy is being a drama queen.
2. If guys with rifles indeed showed up, it was a heavily sourced, credible, report from multiple sources. And, more likely than not, the child is being abused.
Source: I have served on two grand juries, one state and one federal. I saw this kind of thing with some regularity.