I can't comment on the way they portrayed it, but I'd imagine that released slime, in its long fall, might break up and behave much like droplets of rain -- if it didn't just remain a large frozen chunk. It would probably be very hard to aim precisely, like the Huygens probe, because of the vagaries of ATM theories of weird gravity effects -- no, wait... that's postulated but unsupported nonsense -- I mean the vagaries of atmosphere entry interface and travel thorough turbulent gas of varying densities.

Maybe you could keep the slime inside a steerable, smart container, to be released when it is close to and precisely positioned toward the target.

I think I might be concern about the budget for this project. It might not have a very good cost/benefit.

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