They looked awfully long Jon.....
Have you tried them on the Murena yet?
They are really not that much longer. But as you can see, one end fits at a right angle to the hole. I would set that end in the door and the straight end in the frame. This will let the grommet twist, rather than flex lenghtwise. I have a feeling this lasts longer than the original, as the two holes are not exactly opposite.
Interestingly enough, the original Murena grommet has an extension on the end that fits the frame. This extension goes through the frame and fits the inside opening, where Oetker used a round, simple plate grommet.