First, lets be clear about the subject.... the phenomenon commonly referred to as "DMF shudder" usually happens near the torque peak, typically between 1700-2000 rpm in top gears 4/5/6 at full throttle. Some cars will do it harder and more frequently, others less or not at all, and varying degrees of severity. Some describe "kinda like driving over a little gravel" others say it's like the engine wants to jump out of the car. Others... nothing at all. No apparent differences between cars, but some do it, some don't. Almost always associated with a tuned car... so the blame is tyically laid on a tune that is "too powerful for the weak dmf clutch" or some such nonsense.
Clutches that are overloaded or worn out will SLIP, NOT SHUDDER. Slipping means RPMs will climb rapidly while the car does not move any faster. RPM may "bounce" somewhat as the clutch alternately catches and slips, but this does NOT shake the car. This is exactly what happens in gassers and Euro tdi's with similar transmissions, and every other tdi clutch in the older cars, even with DMF. USA CR TDI clutches are not special unicorns! An overloaded or worn out clutch will SLIP NOT SHUDDER. The difference is in the *ENGINE* management. Not the transmission.
However...What the OP describes in that brief post does not strictly fit the classic "shudder" that is commonly (and mistakenly) associated with the DMF. When there's a shake like that at RPM over 2000, in a stock car, it could be a failing DMF, but it is more likely a CV jont or axle or possibly a motor mount. There is no mention of whether the engine is cold or not, no CEL or any other conditions. But IMO the OP should look at other causes before considering the clutch.
For heavens sake DO NOT buy a SMF for your USA CR car, unless you are ok buying a complete new transmission on 10-15k miles!
