I don't camp much anymore, but I used to spend half my time in the woods. Never had to baton, never even entered my mind until I saw a video of someone doing it. I thought it looked foolish, but once I tried it I found it was a lot of fun. Similar to how I used large chisels and cutting tools to do post-and-beam timber work.
Anyway, one of the best things about batoning (in my mind) is creating a useful purpose for knives that look like they were ground out of a left-over chevy leaf-spring with a bastard file and half-an-hour of free time.
I love big, heavy knives, but some of these current blades are short-swords, not knives.
I love short-swords, but I like a lighter, more nimble blade on a short sword unless I'm going to field dress a Toyota or battle a transformer (not the Lou Reed kind, the Optimus Prime kind).
In all seriousness, though, batoning is satisfying on a visceral level, and it does allow you to place cuts more precisely than you would with the swing of an axe. Is it necessary? Who cares. If it gets people outside and actually interacting with wood, a blade, and their wits, how can it be bad. A lot of the current generation can't even figure out how to use a wrench or drive a nail. Anyone who is using a tool that isn't a smartphone and doesn't require electricity should be praised and encouraged.