It probably has to do with the capacity of the dryer as in 20# indicating that it has an ex-large capacity drum.
The washer is an 18# machine. I think it's kind of interesting that the washer offers all 14 min. washes no matter which cycle you use. The difference being the wash speeds and the length/speed of the spin. The one thing I can't tell from looking at the washer pics is if that second control is for temps. or water levels.
Too bad they didn't show a money shot to see if it had the rear mounted filter basket or had the burpalator.