> High trust society

Um, no. In a high trust society "swatting" would not be a thing--because people would understand that it's a huge violation of trust. And people who did make hoax calls like this would suffer severe punishment--because that's what a high trust society has to do to people who violate trust like that, in order to stay high trust.

> Act now (to reduce potential loss of life)

Not necessarily, since SWAT teams are generally not noted for their restraint--certainly not if their response on swatting call number 55 to the same house is the same as it was for call number 1.

> and verify later

Okay, let's say this is valid for call number 1. Still, what about call number 2 to the same house? Let alone call number 55? Especially when the owner of the house produces evidence that people had threatened to swat him?

So no, we do not have the kind of society where your logic makes sense; the rare cases where the quick knee jerk response actually prevents harm are more than overwhelmed by the much more common cases where it's a false alarm but the police keep on violating innocent people's rights anyway.

I said high trust not high intelligence. Your law enforcement gives blanket trust to reports, because in a high trust society false report is rare.