Pike has 26 pierce, is pretty cheap and isn't meant to be great 1vs1 because it's an anti cav support weapon.
Even if it had more damage, it would still not be great in duels, because it's ridiculously easy to block and only whiffs in close combat situations.
I'm not only talking about the pike, but about spear weapons in general. I think the game could be a lot more fun if spears were longer and did more damage, but were even worse in duels. Spear formations could actually become hard to break, possibly needing the use of ranged weapons. Right now, the game is mostly a duel simulator, there is not much actual warfare going on. I think this could be changed, if weapon advantages and disadvantages were more pronounced. Right now, a warspear is just a cheaper and worse 2h sword.
One thing that also bothered me lately is that the shaft of a polearm seems to be able to do as much damage as the head. Poleaxe facehuggers don't seem to whiff very often. That's why you see polearmers fight exactly in the same way as 2h sworders. This would actually be a big advantage of 2h swords, to be able to do damage from very close to medium range. Polearms would be medium to long range. It is a little like this with the polearms that have no sideswings already, but it needs to be like this for poleaxes, hafted blades, hafted maces, etc. too. To compensate, they should get a damage and length buff.