I think I understand the philosophy behind MA and weapons (like clubs, etc.) being different skills.
I say that I think I understand, because I don't know what background the people who coded the game have. All I can do is speak from my own experience. As that experience relates to martial arts and melee weapons…
I started training a Chinese martial art in 2002. I started teaching it in 2005. I taught multiple times a week up until I moved in 2016. I still go through the forms a couple of times a month to make sure that my body remembers the sequences.
I think I've posted this before. But here it is again for reference.
https://www.laukunedo.com/history.html
It's based on wing chun. Wing chun is big on ambi-dexterity and training each side of the body equally. I mention this specifically because there have been some questions about dual wielding.
I learned a handful of weapons. The first one was "the stick".
This is close enough. It's just a piece of hardwood. About two feet long.
https://www.aliexpress.us/item/3256804747603907.html?spm=a2g0o.productlist.main.21.be914ed592djCV&algo_pvid=d44f67bf-014c-440d-a9e5-da36213bf385&algo_exp_id=d44f67bf-014c-440d-a9e5-da36213bf385-10&pdp_ext_f=%7B%22order%22%3A%2230%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21USD%2133.35%2131.68%21%21%2133.35%2131.68%21%402101ead817450393627107383e55d8%2112000031070130683%21sea%21US%210%21ABX&curPageLogUid=19uhq3xSZWBA&utparam-url=scene%3Asearch%7Cquery_from%3A
Without going down rabbit holes and getting up on soapboxes, I will share that my personal experience is that fighting with weapons is not the same as fighting open handed.
My sisook at the temple was Derrick Dalan. He's the 2nd on the left of the guy in the red shirt in this picture.
https://wingtsunkwoon.com/atillo-balintawak-eskrima-at-wing-tsun-kwoon/
His eskrima (stick fighting is good). I'm no where nearly as good as he is. But, I know how to hit people with a stick.
All that said, I'd take a knife over a stick. "Nobody wins a knife fight. One person just loses less." I'd prefer a stick against knife, versus knife on knife. That extra inch or two of reach does matter.
The style I learned does have double weapons. Wing chun butterfly knives (you can look them up). Double nunchuks. Double willow leaf swords. Double tai chi swords.
All that said, practically everyone I trained with agreed that the preferred "real life" style would be one weapon and an open hand. The double weapons are for training. For getting that left brain / right brain connection going. For being able to use your off hand in case your primary hand gets disabled. (knuckles broken. wrist broken. dislocation. whatever)
With all that out of the way, in my opinion, a stick is not a baton. Is not a truncheon. Is not a tonfu. Is not a nightstick.
The human body can only move in so many ways. Joints only work the way they work. There are only so many ways to make a weapon that will be effective against other weapons, and other people.
Leave the baton as it is. Leave the cricket bat as it is. Leave martial arts alone. The whole, empty hand beats weapon stuff only really happens in the movies. A person who needs to defend themselves would be wise to use whatever weapons are at their disposal. Whether that's a pool cue. A broken bottle. A knife. A club. A handgun. Whatever.
Flesh is weak. Fighting hurts. As my Sifu once said, "You win every fight that you avoid."