That's the problem. They don't want to make them useful. It's easier to remove things that don't work instead of taking the time to make them useful.
Well, as I said before, nothing is free. Time invested in spears means time not invested in something else. And there's probably a lot of things that would be even better than having spears in the game. I for one wish they hadn't wasted time implementing such a boring marriage system. The idea that somebody spent hours planning and implementing a
cooking system in the game blows my mind to no end. What's next? Will the clothes irons be actual, usable items in the next installment,
The Elder Scrolls 6: Domestic Drudgery? Will the brooms be used for a sweeping minigame?
So while a good, unique restoration of spears in the game - and I don't just mean a "spears" skill and some animations for spears, I mean real tradeoffs, real benefits and drawbacks to choosing a spear - is a good idea, and far more valuable than marriage or adoption or cooking or what have you, it's also not at the top of the list by any means. I'd much rather see mounted combat, flow-based water animations and seasonal foliage added before the spears.