It did not take long for posters, including one prolific "expert" on all things GA, to have jumped right on this thread implying pilot error.
If said posters had made any effort to educate themselves on the design of the landing gear fitted to 1960's vintage Mooneys they would have learned that the aircraft has a manually actuated landing gear operated by a big bar between the seats. There is
no anti-retraction squat switch, just a latch on the handle. If you watch the video it looks like the nose gear bounces back and forth just before everything folds up. If the system is not properly adjusted or the actuating rod ends are worn the gear can unfortunately collapse on its own. This would be more likely on an un paved runway because the aircraft will bounce up and down loading and unloading the gear lock.
The bottom line:
1) Nobody was hurt
2) A bunch of sensible people fixed a simple problem, how to raise the aircraft high enough to drop the gear, in a simple and effective way. It is good to see that the people in the NZ GA scene are still able to use common sense, unlike
some other grossly over regulated juristictions.
3) As an aircraft owner it is important to know the weak/troublesome/problematic areas of
your aircraft and direct maintenance actions accordingly.