The ETK book does mention something about the record holder for the SSST using a treadmill for interval training, to increase his capacity for snatches.
Crank up the treadmill to 8MPH on the highest incline, run hard for one minute, step off for one minute... do it for 17 minutes total.
It alos mentions it's not "sissy cardio"... so kinda have to take the "dishonor of aerobics" quote in proper context.
The "Cardio" described above is definitely not dishonorable, and in fact, helped the record holder boost his snatch numbers.
The other "cardio" we see a lot, where people hardly break a sweat, don't increase their heart rates significantly and "workout" for an hour or more... is what we're talking about.
This
article from Marty Gallagher explains it well.