There have been instances of people having to have turbos replaced. If you read through all of the D3/D4/RRS forum here as well as the DISCO3.CO.UK - Index site, you will find reports of that happening. But does it appear to be a regular issue? No.
(I tend to analyse purchases to death, and before I shelled out my hard earned on a D3, I made sure I knew as many of the facts as I could get hold of).

