I’m pretty confident this is the answer, I know in construction it’s common practice to completely demolish certain things rather than leave them if they could serve as a hazard.
The glass in the video is a different type of glass to those videos. The glass the cop was hitting looks laminated, likely AS1, not tempered. In not 100% confident because the video quality sucks, but the way the glass is white and almost looks dusty in the middle makes me think its laminated. If that’s the case, the cop can swing all day, it wont make it any safer.