The problem isn't aethetics or viability. Rogues have consistently been fine in both departments (until s12). The problem is playstyle. Despite how smooth the energy and combo point system is, they've made it even better and keep giving it to other classes instead of making it better for rogues. This does not mean the class is weak in any way shape or form, it's just the class skill cap AND skill floor are higher than that of most other classes.