As I experienced life threatening DSG issue, I went to study more on this topic to expand my knowledge base.
I found that one of the REASONs for DSG to heat up is because there is a near-permanent clutch slip until 6th gear high rpm.
What does that mean? I dont know.
I am not an engineer nor car expert.
Fkswagen is the most high tech and high performance wagen I have ever driven.