I have my doubts but perhaps. The thing is that hydrogen's buoyancy is so high that it lifts up above the dirigible very quickly once released. So fire risk i

I have my doubts but perhaps. The thing is that hydrogen's buoyancy is so high that it lifts up above the dirigible very quickly once released. So fire risk isn't really that great in terms of burns. The bigger problem is the "lack of buoyancy" of the rest of the dirigible (and the impact with the Earth affecting the passengers). So that's a bigger issue to address, engineering-wise.