What those papers (or at least the ones I think you're talking about) deal with is something slightly more nuanced than what is being discussed here. They analy

What those papers (or at least the ones I think you're talking about) deal with is something slightly more nuanced than what is being discussed here. They analyze how the pool recovers from a compromise, i.e., if you somehow manage to dump its entire state how quickly can you gather entropy again to minimize the damage. It turns out Fortuna and variants thereof score very well in this metric, but this does not have any bearing on the quality of the output, or whether it loses entropy by generating more bytes.