I'd probably agree with this. I used to run 42 x 16 and just recently switched to 46 x 17 to get more skid patches, with only a slight increase in gear inches. But then again, I was running fixed and skidding easily was part of the reason I liked that ratio.
For fixed, this ratio would probably be good, but I think if you were running a freewheel you could stand to up the gear inches a bit.