The Veg

I have 2002 GTI which recently went in for coil replacement. When I was driving home it made some disconcerting rattling/whooshing sounds out front and worse yet when I hit a hill I got a really disconcerting stumble & surge.
Returned to dealer and this was fixed in ten minutes. Mech said the hose clamp on the turbo recirculation valve hose had broken and he replaced both clamps with larger/sturdier ones at no charge (no problems since). Is this common?

I also have a general question: I remember that turbos came and went back in the 1980s and that a big problem back then was that the turbochargers had a useful life of only about 50K miles due to vane distortion caused by the extreme forces and high operating temperatures the vanes were subject to and bearing failure caused by oil getting cooked at the extreme temperatures reached after shutdown when oil stopped flowing (resulting in that oil which remained in the bearings being coked into grit). How do the modern turbos in our VWs compare? I have been unable to find any data on this. I've got 20K on mine and no noticeable degradation in performance yet.