Rob, another consideration, not a safety factor, but one that could, I said COULD, affect my season.
Seasons are based upon need, with many or most Departments looking to effect a certain kill and also to present the maximum user hours to achieve that kill. In other words, If bows were 100 % effective (success rate). . if everybody that carried a bow killed a deer, or two, or three, then a certain kill would be expected. In addition, if the number of folks that carry a bow double, it stands to reason that the total kill (but not necessarily the success rate) will increase. Not to mention the crowds that would be using the same areas.
For much of the US that sort of achievement could not support a a multi month season. Face it, I am allowed to carry my bow in WI (for deer) from mid September till the end of the year. That would not be possible with high success rates.
By continually adding weapons or improvements to the existing weapons that boost the success rate, it stands to reason that it will affect my season down the road. Sure, there have been high numbers of deer for the past 10 - 15 years, but that wasn't the way it was in the past and it won't remain that way forever.
ChuckC