Prime example on season length: due to work and family responsibilities, I have only been able to hunt two hunts (two mornings) for myself this gun season. The other times afield have been taking my kids, other kids, etc. Even that is limited because of things called work, family, church, etc. Because of work, church, and weddings, I am in a 2 week no-hunting gap where I cannot go myself or take my kids or anyone else. When that clears, time will still be limited, and I will still have kids to take and will get to hunt very little for myself. A longer season allows me to take care of life, my kids, and work on hunter recruitment, and then hunt a little for myself.
I'm assuming that people asking for a shorter gun season are not taking other hunters that need direct guidance, and/or can take off whenever they want.
As I drove around SE TN the past few weeks, I have noticed more deer than ever are dead on the sides of the roads. Although somewhat anecdotal, this does not seem like a deer herd that is struggling to survive and needs the season shortened.