Haven't most of the hearing on having such seasons broke down to shouting match over primitive versus modern?
And there was some hand wringing when compound bows came out.
There is a lot of politics involved.
If the muzzleloading crowd was smart
they we would organize and borrow a few pages (or chapters) from the bowhunters play book.
A unified voice at a Fish, Wildlife & Parks Commission meeting or a Legislative session is a good place to start.
I think FWP is willing to listen to new ideas. Not long ago the archery antelope season was moved up from September to August 15. After I don't know how many years of the opening day of the general hunting season being a Sunday it was just changed to Saturday. To encourage youth participation the kids now have 2 days before the general opener when only hunters 11 to 15 years old can hunt (when accompanied by a licensed adult).
Lots of good changes are possible if you work the system.