over 15,000 miles and my front are still in good shape on my 2nd set of rear. That being said they are correct about riding style in most cases,not saying if it is or isn't here since I never saw you ride. But lets say for the sake of argument you unknowingly rest your foot on the break pedal enough to make it drag some. That would wear your rear break out quickly. Same for resting your fingers on the front lever and front break wear. Hard riding and hard breaking will wear them faster too. I use my engine to do quite a bit of deceleration and only break near the end of my stop in many cases.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!