I took the riding course last spring, here in Illinois. And yes they were ALL ABOUT using the rear brake. only using the front on an absolute emergency only basis. And because thats what they taught us 99% of my brake usage is rear. my old 1980 ATC 110. didnt have a front brake. So using rear comes very natural.
Tell me it isn't so. Instructors are telling people that the REAR does 99% of the work. That's insane at best.
The course was free. The instructors were from the DMV. After we finished we received a card. took it down to DMV, they took our pics and they handed us our licenses. done.