Whales blocking ships is always annoying, in particular in battles when one has to retreat, even more because they are moving and changing directions.
The only argument to not have them blocking has been that the models would overlap, which would look unrealistic as neither of both are ghosts.
However (1) the corpse does not have the blocking property but the same model and position and (2) it doesn't look that bad if you check the gifs and (3) it is not unrealistic that whales swim below ships.
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