Don't get hung up on the thought process of How things SHOULD be, and instead be AWARE of how things actually are. We need to be more analytical with our decision making.
Lots of folks are working on things emotionally instead of intellectually, i get it, they are dogs and we care deeply about them.
Doing rehab and behavior modification is pretty methodological work though and it takes a pretty neutral mind and heart (not cold heart lol) to get the results needed.