Oftentimes the number of deer don't have a bearing on duration of seasons.
Wi seasons are always the same. We only have a 9 day firearm season.
If you've never experienced the orange army of idiots that comprise opening day rifle here, there's not much like it. Imagine if you will an entire state of half drunk and drunk buffoons picking up a high powered rifle for once in a year and blazing away with reckless abandon at anything brown..
Of course I am generalizing and not all here are this way, but unfortunately the masses here are. After opening day hunter numbers dwindle by more than half I'd bet. And by Monday, more than half again.