wow. the thought pattern of these forums. Skyrim is indeed simplified (not exactly in a bad way) but to say that's why they don't have spears....my god.
Well, you're free to provide your own reasoning as to why they may have been removed.
The two first questions bethesda recieved when they wanted fan questions.....are there werewolves? and are there spears?
I fully believe Bethesda were suprised when that was such a popular question.
If they had actually spent any decent amount of time on their own forums, they wouldn't have been surprised.
Why have they been removed? In order to reduce the amount of work, spear are compeltely different from all the other styles of weapons, and in the history of playing games.....they are often least chosen.
Again, if they had actually spent any decent amount of time on their own forums, they would have known that people wanted spears and crossbows back after Oblivion was released. It should never have been an issue or a surprise for them.