Ole800

I just quickly looked through Ben Sulsky's toy gaming videos to see where he mentioned this. These videoes where my introduction to these concepts so I figured I had to see if I had misunderstood what he said there.
In his video "Toy gaming (part 3)" he says at around 19 minutes into the video "the bluffcatching player calls with 1-a hands that can beat a bluff" (quote from MOP apparently).

This is confusing me.
I understand that most of the time you have enough bluffcatchers that this "issue" is not relevant. But I want to get it right.

Thanks for a great answer Ryan Martin ! It certainly made me understand this better.
I still however have some doubts.
"In your example, you would defend 100% (15 combos) of your bluffcatchers."
My example had 30 bluffcatchers out of 100 hands, do you mean that (at least) all of these should be defended? You wrote 15 combos and that made me somewhat confused.
If that's correct the answer to my question is that you should defend 50% of your total hands? Unless you don't have a sufficient amount of hands that classifies as bluffcatchers, then you can fold more than MDF (as your PIO example).

My question might not be very realistic, it was just a hypothetical to make me understand this better.

I have a question which sort of covers the same topic as OPs so I figured I could ask here instead of starting a new thread.

My opponent bets full pot with a balanced range of only nuts and air on the river. I have 100 combos of hands. 30 bluffcatchers and 70 air. MDF is 50%, I am supposed to call 50% of bluffcatchers (15hands) right, not 50 hands total? I've been under the impression that 15 hands is correct for some time, but got something made me insecure.