No I never said it was wrong… But in one Hand you are complaining about baseball bat lightsabre, and in the other we have a shot with a similar inconsistancy because unfortunately the special effects did not work.
You said yourself that the stomping works either way, and I agree. I never knew the robes were supposed to be on fire, I always just assumed he was “making sure” or something. The difference between the two instances is that one is an obvious inconsistency (the result of someone being hit with a lightsaber changing) and the other has an explanation that is certainly plausible.