An interesting idea, but how does that work in the context of a field of dry, burny* wheat? Surely any fuel that wasn’t burned would’ve been burned by the subsequent grass fire from the rocket launch. If you look at his example of a buk system being fired you can see it’s pretty damn burny. You can’t get a rocket off the ground without burning something in the first place.
*Yes, I made up this word.
Also, I don’t buy the idea that MH-17 was being escorted, firstly because there’s no examples of that happening previously, secondly because it would be a shitty plane with which to escort a passenger plane, thirdly because it would make no sense to confuse a definite civilian aircraft flight with a potential military/valuable one because it being shot down was a distinct possibility and fourthly because the Ukranians already have enough going on to care about a passenger plane that wants to fly over their territory. Planes and fuel, in a war situation, are things you don’t want to use unnecessarily.