I don't like it because viper just looks weird when listed with the other jobs. I tried articulating why earlier, but it's hard to determine exactly what makes it seem off beyond it not being an instantly identifiable "people job". Bounty/Treasure/Just Hunter would probably have supplied the morally dubious tone while sounding more correct. Don't know if it has ranged options yet or turns into a giant snake, but if not then scout/assassin or something in the anglosphere zeitgeist associated with dexterity and big knives - reiver's probably not it, but there's surely at least a few more before resorting to animals. Guerrilla for instance.

It's nice to have a argument about something other than how it will end up playing into raid buffs. Maybe it's just a 2d chess move to act as a lightningrod for criticism.