More questions about hydrazine Re:Good coverage (Score 1)

What will happen or not to the hydrazine tank on re-entry has been widely discussed. But what will happen to it right at missile impact time? I read somewhere that the core target was indeed this hydrazine tank. Granted, there is no warhead in the missile, but if the hydrazine tank is touched, I guess it should help the thing to blow off in more pieces with more initial energy. Right? Does that change the picture in terms of debris cloud dispersion (downward and upward)? Strange nobody seems to speak (or think) about that, unless I miss something. Thoughts?