As ever AnFI - lots of wordy theory backed up with no practical experience.
Glad you spotted my red herring of the wrong Llyn
At least it made you read the accident report.
The pilot attempted to regain speed - they were doing 60 kts when the driveshaft failed (due to the recoupling of the disconnect coupling and now vastly differing speeds of TR driveshaft and TR) - using forward cyclic but the only way to reduce the rotation was to chop the throttles (you can see in the video that the rate of rotation decreases).
The difficult bit was then judging the point to pull collective to cushion the touchdown whilst spinning - he got it close enough that the impact was survivable for all except, sadly, for some cabin occupants.
I would love to see you you use your 'theory' in a similar situation and manage to be even half as skillful as the pilot was that day.
BTW - who on earth refers to 'a sexy mushroom'????????