A couple thoughts...
1. The "strut (w/o shocks)" basically excerts pressure on the initial 20% of clutch pedal travel.
2. Now the initial 20% of travel is gone, so we spend less time on depressing and lifting the clutch. Also, now the clutch engagement point is much closer to the initial position of the clutch pedal (since the initial 20% is gone).
3. Perhaps an aftermarket telescopic component can replace the "strut" to maintain lateral support.
E92 M3 DCT