I don’t actually see a situation as a concealed carry fail. On the other hand I don’t think there must be legal difference between open and concealed carry at all. As far as you have right to bear arms does it really matter is it concealed or exposed?
No matter that CCW is legal in my state, most employers, including mine, forbid weapons on their property - even in one’s own car which spends the duration of the shift parked on their grounds.
So here’s the case where if I ultimately value my survival over employment, but must of course work for a living, my method of carry places more value on deep concealment rather than quick deployment. What my employer doesn’t know does not hurt me. But it might make the split second difference if I am forced to draw my weapon. Hopefully I’ll never face that, but I’m fine with going home unemployed to a grateful family.
However as the woman in this article points out, arming oneself while neglecting situational awareness may also make the difference.
I wish her a speedy recovery. She reads as a tough lady who will be fine, eventually.