Mines a 2015 build and doesn't really have any vibes i would class as abnormal , it is a Sports version though (non SE) although i wouldn't have thought it had any bearing on it.
Maybe they have changed something, who knows, but there are loads of people just like me who never had a problem in the first place. I think lots of people go looking for something personally just because a couple of early reviews mentioned 'vibes', i guess thats normal but theres been loads of reviews, all overwhelmingly positive, that haven't mentioned vibes being a problem at all.
Take the DVT reviews early on for example, i know of at least two or three reviews from well respected journos that mentioned vibrations through the seat on that.
Glad yours is ok though, I'm sure you'll love it