The Video talks about having Patience and it is very true if you want to take out the whole Sounder.
We have two dedicated hog feeders that don't have pens and we don't hunt them except when we want a good eating hog. Leaving them alone, allows the wary ones to get comfortable and come to the feeder during the time we like to hunt instead of when they like to.
out traps are left open until we see the whole Sounder and then the trap is set. when we catch all of them we sometimes let the small one go (For later harvest) and take the bores and sows to control the numbers.
We have gotten the numbers down to reasonable numbers and this helps manage them.
We also hunt the really big hogs at night when they become wary.