I guess it boils down to whether we want Lando to be an accident victim or someone who dies in sacrifice of his own free will. Each of these have their own problems and their own payoffs.
If one was to kill off Lando in their edit, I think I'd want Lando sacrifice himself on an impossible mission. I think I would feel cheated as an audience member if he had the chance to get out alive and it was taken away from him.