The issue of 4 SWATs called to the same location is interesting to me because of all the other follow-on questions it raises in my head. It is tempting to give answers for them all as well, but my answers would all be speculative with no evidence to back them.
1. How are 911 dispatchers organized and staffed to have 24/7 coverage?
2. How are SWAT teams organized and staffed to have 24/7 coverage? How many SWAT teams cover/overlap a given address?
3. Comparing the answers for 1. and 2. with something like the fire department. Fire departments at times have to fight fires that run into multiple hours and multiple days and scale up their operations with help from neighboring regions and higher levels of government while maintaining sufficient organization and knowledge.
Well, in the flesh things take time to happen, the setup for the call, the deployment, the investigation, the debrief, a cooling off period to observe the results, thats probably a couple hours minimum. This isnt something you can parallelize or task more cores too, the swatter probably got bored, tired, or hungry.
Because the 4th time could be real even if the first 3 calls were hoax? I suppose there can be protocol to filter out hoax calls, but imagine if a 911 call came but nobody took it seriously because of the swatting history of that place. Everyone including HN will have a field day how irresponsible and indifferent the police were, that they would only protect the rich and powerful. Sound familiar?
