Arguably, because of the era of society that FR is based in, there are probably plenty of non-ranger and druids who would have the backwoods skills necessary to hunt and kill, whether or not they are wemics and centaurs. Arguably, it could be made an everyman skill because of that.
But as I gather, the skill is allocated such that there is a trade/skill unique to certain classes and guilds. Much like other skills have been shifted from one guild to another for the sake of having a characteristic skill. I echo that if you want to slice, become a druid, or ranger, or a malarite

"There is no safety for honest men except by believing all possible evil of evil men."
Kregor - Ranger of Tangled Trees
Rozor - Lady Luck's Duelist
Tygen - Ranger-Bard of Mielikki