You kinda did.
You said you don’t think they should be required for rotational use. Thing is that is not even true in Wrath, its just less important.
Consumes being a big part of PvE use and even PvP use is a major part of “Vanilla”
Mana users require them, rogues use them less but still, warriors use them less but still.
Each class has things it does well, and things it does like crap. Consumes are there for you to make up the difference if you select to do so.