Oh and also this is much different of a movement than a regular KB swing. That for me with a 24kg is much easier because I lose acceleration at the top by stopping it slightly. Instead of swinging it, I would have to throw the kettlebell upwards or behind me for a similar effect as these jumps.
Yeah that would be the best exercise possible in terms of KB swings. Throw the KB AFTER THE HIP HYPEREXTENSION is reached.
The only possible positive effect I see in your exercise is the landing with a ton of forward momentum and being able to stabilize that landing without having the knee collapsing. So it's actually in the eccentric phase if there's any benefit. But as far as developing force, even with the swing being initiated by the legs... no, it's not superior by any means to a regular swing.