About how I feel. It's clever and I'd use it on a smaller tractor. On the
M59 with 4000 lbs of lift, the latch pins can get a little bit sticky. Half the time I can work the levers by hand - but the other times it helps to use a handy 4 foot cheater pipe.
I also like to visually inspect that the bottom pins engage and that means getting down off and taking a close look. The visibility on the SSQA fron the tractor cockpit isn't all that good.
One time last year one pin didn't fully engage and over a bump the empty bucket went sideways & almost came off. Just dumb luck I didn't end up tweaking some part of the SSQA or loader. Now I always get off and check.
On a smaller barnyard chore tractor I'd think it would be worth doing. The video is definitely worth watching if for no other reason than to see an old style craftsman at work.
rScotty