IMO folks concentrate too much on planning for the worst case scenario type of shot that requires going through heavy bones when they should be concentrating on this type of shot never occuring.
I agree in that people should always prepare themselves as best they can to make sure a bad hit never occures but we all know this isn't a perfect world.
There are some broadheads out there that I wouldn't shoot an oppossum in my back yard with much less a deer or other big game animal.
Add in the fact that there are other big game animals out there besides deer that are much bigger and tougher that require a broadhead of superior quality and strength.
No we aren't going to be shooting at any cinder blocks when hunting but one thing is for sure. I know which broadheads have what it takes to get through any animal that I wish to hunt with a bow and arrow and stay together and which ones I will not use.