I bought one for my 30 cals. I cleaned my 03-A3 from the breach and cleaned, and cleaned, and cleaned... and there was always something left. Then I thought, the fouling is ironed on from the breach; what if I come at it from the muzzle? The last bit of fouling away from the breach may not be ironed on as hard and flat. I reversed the cable and ran the brush muzzle to breach 4 times, followed by Otis patchs. First 2 showed dirty, third one was clean..... from both ends. I did my M1 the same way; first from the breach then the muzzle and got the same result. Fastest I've ever cleaned an M1 barrel.
The difference with Otis over the sectioned/one piece rod is the coated cable, and making sure the connection 'fitting' is inside the muzzle and not banging the crown. The coated cable won't wear rhe crown or rifling like a rod.
I don't see any heresy here.