I mean...
Skidoosh never said anything about extrication* in the original post. Or about demolitions. Just prying, and nothing too heavy.
I really like my Fubar, and I refuse to admit that I'm compensating for anything!
But I don't think they're looking for anything more than an EOD Robotics bar.

*Edit: yes, they did, and I should lurn two reed bettur.
A bar in the 6-8" range will still get you through a wooden residential door, just with more work than the two or three enthusiastic bashes that a demolition tool would need.
What? I get enthusiastic when I have the chance to break something for good reasons. Doesn't everybody?
Anyway. I think there's an honest, practical limit, here. 10" OAL seems like about the biggest that could be stowed in either a calf sheath or an under arm holster. The problem isn't so much about your personal size, it's being able to hike your pants leg up far enough to get the damn thing without hopping around on one leg trying to keep your balance!