Neither Woods nor Burtt mixed the prequels. In fact, in the documentary on the Episode III DVD Burtt is trying to argue Lucas to get the sound effects louder and louder until the mixer finally gets upset and basically argues Burtt down. So if it was up to Burtt, you'd have the prequel mixes being fucked too.
Brilliant sound designer though, he should stick to that. This book sounds kind of interesting. Are there any sound outtakes and alternate versions that never made the cut?