you assume she had the opportunity and wasn't disarmed from behind or some other alternative... technically speaking you should be thankful the occupants weren't murdered when he disarmed and took her firearm.  This could have ended far worse.  

These articles aren't here to give play by plays of the situation all anyone knows is that the intruder broke in she attempted to arm herself and protect her home and he disarmed her and took the weapon when he left. 

Anything else is assumption on your part which is useless banter

I'm happy she lived through the encounter