It's fairly simple, why is throwing a bad thing? why are throwing lances OP when they cant do crap to someone with 60+ torso armor? so why remove them?
The ammo amounts for throwing weapons is already so low, that unless you make a throwing spam character you will need to be up close, well within rush range of the enemy to use them, and they often cant even break down shields, and you wouldn't waste time trying.
The throwing lance will one hit weaker characters, but honestly so would a good arrow or crossbow bolt. so that point is also false.
And if anything, we should have more types of throwing weapons, heavy rocks you could throw, since in a siege the defenders would throw anything they could at the enemy, even chuncks of the castle that got knocked off..
-Ulrek-