Oddly, mine did this really badly today. Whether the cold weather (-3 here) made it worse I'm not sure. Mine's a March 2016 model, with 15000 on the clock, no mods.
Mine has always done it since new - when calling for a very small amount of power, usually in 3rd gear at 1500rpm, it's most noticeable. It's as if the car 'hiccups' and loses power for a split second.
Today - I was on an almost flat road, VERY slightly downhill, and had cruise control on & set to 31mph. Out of nowhere, it did it really badly and it felt like the engine actually cut out. It didn't - and I got no warning lights - and then went back to normal.
To a passenger not expecting it - today's episode would have felt like the engine was badly misfiring, whereas previous ones would be barely perceptible to a passenger, but noticeable to the driver.
Odd! I'm looking forward to my new FR ST Sport 190 DSG which is due in 6 weeks!