I went through that whole demo to see if any other freehits occurred beforehand, and I don't think any did that I could see from your perspective.
The first airblast (in the clip) was fine as that sniper honestly coulda died for his delay, it's the second one that hits multiple people I do have an issue with.
Granted it does feels a bit much to punish off of alone.
Same with the freeday kill. It clearly is an accident, and something that happens a lot on that map.
Seen it happen many times due to interwebz' lighting.
Gonna leave this report open for a while for further examples.
Particularly with the freehitting, as some people don't know airblasting is freehit, so I'd like to see a warning given before accepting a report for a single instance.