Also, by the way, "Occam's Razor" has been paraphrased in many ways, but the original Latin phrasing is often given as Entia non sunt multiplicanda praeter necessitatem (Не следует множить сущее без необходимости; "Entities should not be multiplied without necessity").

And the "KAL 007 was a nearly-empty spy plane with no passengers" theory thus violates the бритва (razor) in a quite literal way -- it "multiplies entities" by requiring that a far larger number of persons (namely, the hired actors pretending to be loved ones of the imaginary passengers) must be participating in the conspiracy.

The "passengers were abducted alive by the Soviets" theory could in principle be done with a smaller number of conspirators, but it still violates Occam's Razor (in my opinion) because of the significant number of orphanage officials, etc., who would be involved in re-settling the kidnapped passengers within the USSR.

But if one seeks to explain why only two confirmed bodies were found (on Japanese beaches) from a plane that had 269 people on board, the simplest and smallest conspiracy (if one wants a conspiracy at all) would be the Soviet navy recovered a significant number of floating bodies/body parts, but sailors were instructed to lie and say that they'd found zero bodies; and the recovered bodies were incinerated or secretly buried. That the Soviet navy lied to American, S. Korean, and Japanese search-and-rescue teams about the probable crash location is a matter of record, and also that the Soviets lied for years about the fact they'd found Flt 007's black boxes.

The "no conspiracy" hypothesis would be that the corpses were scattered by ocean currents and eaten by sharks, crabs, etc., before they could be recovered.