This
For a noise complaint they usually only send 1
this can vary a lot in different areas, not all departments are going to send only one officer over to a noise complaint
also i thought the video said that a complaint was filed about him and his brother fighting
He had been arguing loudly with his brother an hour earlier, who had come home in an “obnoxiously drunk” stupor and left before police arrived to investigate the noise.
i don't see much of a problem with them sending two or three officers, and four isn't really too over the top. from what i've heard, things like this could be unpredictable (especially with the one guy being reported to be drunk) and it's couble probably be unknown to the officers whether or not the drunkard has a weapon stored somewhere
maybe for a noise complaint about loud music they'd send one or a second officer to assist, just in case, but in this one their arguing was apparently loud enough for their neighbors to hear them