While fundamentally I don't disagree with you, that the mk4 brakes are not a weakness at all, I'd just point out that fade can indeed be a bit of an issue depending on car spec (we... obvious haha)
My estate is running M330 and its used as a family car, which means always heavy with stuff inside (toddler car seat, roof bars, a million things extra that you need when you drive long distance) + the weight of the car itself being slightly higher... Fade is indeed present after a couple of spirited miles or couple of stronger pedal pushes.
It can be a combination of car heaviness with high exterior temperatures (often driving in warm countries), oil, I don't know. But I'm upgrading the setup to something slightly more robust to fade very soon. I totally get that on a standard mk4 st this isn't an issue and yes, I find that the standard system is miles better than before!
