I hated how non Magic characters where at a disadvantage because they had no access to levitation or mark or recall spell, Heck in elder scrolls daggerfall Mark//recall practically required or you will never get any quest done, A lot of people are complaining about spell scrolls are a unfair way non magic characters can use magic but come on magic elder scrolls is Broken spell scrolls will give non spell oriented characters a way to fast travel or a way to be enemies that are not effected by their gear and stealth characters invisibility which they will need to complete quest that sneaking alone won't get them through like the dark brotherhood quest where you were sent out to kill valen dreath believe me sneaking wont help you past those guards, so I just want to see the members opinion about spell scrolls.
Fortify Sneak 8pts
Fortify Illusion 8pts
Fortify Marksman 8pts
Fortify Blade 8pts
Fortify Acrobatics 8pts
Those are the skills on the shrouded armor (DB joining gift). It is safe to assume that these are the Brotherhood's expected skill set. If you can't complete one of their quests without one of their essential skills then it is not the game's fault. Playing stealth is not easy, and it should not be. I used Illusion to get past the guards, but then I decided to go back and try sneaking. It worked fine. Most likely you just didn't give them enough time to move out of your way. At the top of the ladder the two talk there for a good 30 seconds before going to their posts.
P.S. The patrolling guards are super easy to get by. I probably didn't even need to sneak at all on them.