What looks like 85km apart could easily be 100 metres even without divergent currents
Unless I missed the times at which these two bodies were found then we can conclude nothing. If one was found at A and the other days later at B then all we need is that they were far enough apart for the second one not to be seen when the first was recovered and normal currents would then move it somewhere else in the intervening period. We do not need diverging currents at all.
Of course, the Brazilian Navy have the data, they can superimpose the drift and decide if the data is inconsistent with intact entry to the sea. We can make no such inferences at present.