Blizzard neglecting rogues back then was seriously in style, so you are saying "they weren't iconic because Blizzard didn't make a really good one". Mostly, that is true.
I generally agree, but now even assassination is nondirectional (it's the ONLY nondirectional spec- don't forget killing spree). I wouldn't mind combat using daggers just to put us on par with the other pures who don't need to get so collect so many weapons. Live is still a huge advantage over BC, when I felt like some kind of crazy weapon collector ("theshe mashes SHTUN and thish schword SWINGTH TWICETH SOMETIMETH! It's SEW KEWL to have a bag of weaponsh!")