I had 2 MK7's, both of them were much worse for dash creaks and rattles. The only buzzes I get in my MK8 seem to occasionally come from around the door cards.
I remember taking the centre console apart in my MK5 many years ago - the trim around the vents, etc and applying felt tape in the hope of curing it. Like Exonian said, the modern dash's like that in the MK8 have a lot fewer separate bits rubbing off each other like in the older gen cars.