I have though the same since warband, spears in these games are slow, clunky and most of the times, pointless.
1. In bannerlord, the AI should use them more frequently, even against infantry and they don't.
2. A spear is a fast paced weapon, that doesn't happen here or in bannerlord even if you have high proficiency with it (stat wise)
I could understand not raising it's damage but balance purpose, but they really need an increment in the speed of it, it needs to be more agile (for the player and the AI), I haven't played that much Online, because of my location and ping, but in singleplayer I had my hopes up and running when I started playing bannerlord... Until I used them on foot and when I have to use one in a tournament, I feel dissapointed, even so, is one of my favourite weapons because of what it can offer in any type of battle, even though that in this case (current state of Bannerlord) it doesn't.
In my humble opinion, this is a weapon that should be easy to use and a weapon that should be afraid of, specially agaisnt large groups... The speed (and some damage as well, specially to the head) should be increased vastly.