What?! I'm surprised those are the things you complain about regarding guitar sheet music.

The only real problem is guitar always has several different ways to play the same notes all over the neck and instrument tuning isn't always specified either.

Standard tuning may not work and tabs sometimes aren't there alongside the staff. If you're trying to sight read, you'll guess alright for a while until you are suddenly forced to make heroic leaps to the other end of the neck or painfully contort your fingers just so you don't miss a beat.