While the potential to kill a few creatures at once is possible, kiting isn't except in small spaces. Creatures leash in this game, so no farming otters from all ends of Cobalt Scar. Plus the animosity, fairly justified at that, of players who weren't of classes capable of these things are reason enough to try to not include them.
If you are solo, it is rare you *want* to fight more than one. You can usually survive two similar-leveled creatures circumstantially, but it creates much more downtime.
Only the exceptions can be exceptional.