What typically determines the level of success re harvest rates for deer are 1) habitat quality, 2.) public access, 3.) season set-up, 4.) weather (in some states more than others), and 5.) level of field presence of the managing entity (including public education, research and enforcement efforts). The type of archery equipment used rates pretty low on the totem pole, or if it does rate high in any given state there's likely something very wrong with one or more of the other factors. Whether talking about season length, dedicated areas, equipment definitions or technology, when it comes to archery none of these items come close to the five main items noted above. Those would be the areas I'd first look to for answers re a struggling deer herd...or a perceived overharvest situation.
This doesn't mean that a closer look at some of the archery-related issues already mentioned shouldn't be undertaken/examined as part of the research/field presence effort, but don't kid yourself into believing that today's game managers assign any more than a passing level of importance towards archery as a 'harvest tool'. The objective in that area (special interest seasons) is primarily to pacify the divergent interests that want their own piece if the pie (bowhunting orgs, muzzleloader clubs, crossbow proponents, and yes even anti-hunting groups).
Secondly, based on the collective actions and image of today's 'traditional archers' (many of whom regularly employ high-level technology, materials and techniques in their pursuit of a traditional ideal that some of them won't even admit exists), the chance of state game managers giving a listen to the traditional argument is slim to none. That's not because it wouldn't be nice if they did, it's because realistically the 'simple' aspects of this kind of archery have all but disappeared in favor of ILF rigs, carbon arrows, 40 yard hunting shots and routine bragging of how 'effective' our 'traditional' gear can be. One cannot have his cake and eat it too...either traditional is hard, or it isn't. The trouble is as a group we can't agree on which direction we want it to go with it.
When it comes to resolving a problem it's first necessary to be realistic and determine what the causal factors actually are...and not place too much emphasis on any one potential solution along the way.