I was thinking primarily of a school scenario, where a kid just takes a gun from an unsuspecting teacher. The school staff pictured at the link are not particularly large females. Some of the video I’ve seen of inner city yoots throwing teachers around like ragdolls don’t inspire confidence in armed teachers. An active shooter from outside would be a different matter. Even in that case, if it’s an offensive rifle vs a defensive handgun. I would expect a teacher to shelter in place, and wait for the shooter to try breaching that space...a very close scenario.
True, I’ve seen some videos of students slamming teachers around as well. One of those disarming the gun-carrier and then starting a shooting spree might be a bit way out there in “if” land though, IMO. Or the one with the gun shooting the agressive student for bashing a teacher.
But in the end, stronger is better than weaker. No doubt about that.