Erm.. no. That rubber piece in the pulley does very little. The main advantage of Mythelogy over the competitors is the reinforced center sleeve. It's stronger and resists wear on the center part of the pulley. Horror stories with other brands wearing out in the center is all over the place.The reason why Jerry suggested Mytheology is because of the damper.
Cost more than Works)no damping) because of it and also its better.
All aftermarket pulleys (except for one very expensive one I've seen) don't have harmonic dampeners. Meaning they are very prone to vibrational forces and regardless how strong the T5/T6 alu is, it'll wear & eventually and deform, specifically the center part of the pulley that's connected to the crank shaft. That's why stock pulleys all have harmonic dampeners in the first place, to absorb some if not all of that vibration. Unfortunately these dampeners are made of rubber and will wear out over time.
Anyway, that's my 2 cents.