Right on. Remember the Arrhenius equation? Catalysts speed up the reaction by lowering the activation energy (Ea), but more specifically Ea affects the rate constant k.
k=Ae^(-Ea/RT)
Maybe Chad was referring to how Temperature is the only factor that affects the Keq of a reaction?
Yea, I believe Chad only refers to temperature as the only variable that could affect the Keq's value with regards to the whole bunch of different variables that affect a return from Q to Keq.