Rogue has the least keybindings of any class besides maybe priest. Seriously, Rogue ability list is tiny and many skills are used in stealth/dance only, reducing the bindings.Ambush
Slice and Dice
Mut / SS / Hemo
Dispatch / RvS / Backstab
Vendetta / Adrenaline Rush / Shadow Dance
Shadowstep / Burst of Speed / Preparation
Shroud of Concealment
Cloak of Shadows
Unfinished list, need I go on? Almost all of those see regular use. Rogues -regularly- use more abilities than the majority of classes even have in their spellbooks. Perhaps you should learn how to play a rogue before you silly comments like that?
Things such as
/cast [mod:shift] Dispatch; Mutilate
Can do wonders to reduce the clutter.
This is what I use and has cut my keybindings in half.
Rogues really have it easy though. You want tough? Try a shaman.