This isn't particularly surprising, because the production steps to get gasoline are far more energy intensive than those to produce ethanol.
What an odd comparison and not true by the way. Why was it framed in terms of 'FOSSIL' energy? Your conclusion is flawed because it takes much less 'ENERGY' to produce a BTU of gasoline than it does to make a BTU of ethanol. BTU's are BTU's it doesn't matter where they come from.
Read the paper at the link before mouthing off. The claim against ethanol that keeps being spouted was that it took more FOSSIL fuel to produce than the energy of the ethanol itself. The energy to make the sugar in the corn is free.