It makes sense, really. Israel is the size of New Jersey, and the CH-53 is much more flexible, and the difference in speed does not make much of a difference.
Let's roll the numbers
| V-22 | Ch-53K | |
| Speed | 450 km/h | 315 km/h |
| Payload | 6,800 kg | 15,900 kg |
| Range | 1,627 km | 841 km |
| Cabin Size (lxwxh) | 7.3m x 1.8m x 1.8m | 9.1m x 2.7m x 2.0m |
Since going from one corner of Israel to the other is on the order of 400 km, the CH-53 K can cover the entire country, carrying more, and carrying more internally.
Additionally, the V-22 costs about $70 million as versus about $30 million for the CH-53K.
With a reduced payload and supplemental tanks, something like a special forces insertion is going to have similar range, and the larger internal payload allows the on an offloading of larger vehicles more quickly.
Finally, in a "hot" landing zone, the V-22, with its heavily loaded props/rotors, is more susceptible to vortex ring state (basically a stall in a rotary winged aircraft), and has to descend more slowly, increasing vulnerability to ground fire.
It's a no brainer for Israel not to buy the V-22.
Come to think of it, it may be a no brainer for everyone not to buy the V-22.
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