Rather than keeping spears in the 'hybrid' section, i'd rather see spear getting more focused on one class, either finesse or strength. If it's strength, then change it to scale on strength, rather than on finesse. This'll be the easiest/simplest changes, since like you said, spears already benefits from Warfare, so it's finally on the right spot.
If it's finesse, then change it so that it can work as rogue's/assassin's weapons, making it able to backstab, benefiting (and being able to use) Scoundrel skills, and that kind of thing. It definitely wouldn't be normal, or lore friendly, seeing that spears and other two handed weapon is probably the least concealable weapon out there, but i definitely can see some synergy with the rogue/assassin role. For example, using the spear as a pole, so you can leap from one place to another place, think of it as a shorter and weaker Tactical Retreat/Cloak and Dagger, but as a trade-off, you slam your spear when you land, dealing some damage, or something like that.
But yeah, spear is definitely not the most effective weapon in the game right now, since your warrior/tank won't have that much point in Finesse, and your rogue/assassin can't use their Scoundrel skills when using spear, and can't backstab as well.
