Iirc the unit of one of the Canadian snipers in question, came under friendly fire by an USAF F16 a few weeks month later and 4 of them were killed.
This, 2002, was an early indicator of US trigger happiness as the pilot was reportedly dosed, as per policy, on stimulants and had no real reason to engage unidentified infantry outside of his designated area.
No disrespect intended to US airmen, but early US high command policy in Afghanistan was focused way too much on body counts and did not consider the drawbacks of civilian casualties in a COIN setting. This - and the willful neglect* of nation building of the Bush administration - probably did quite a bit to get Afghanistan to where it is today, despite the sacrifices of so many brave soldiers.
* read Douglas Feith's War and Decision (2007) and he pretty much brags about they weren't dumb enough to nation-build (along with bragging how great a job they did in Afghanistan).