Any records of brake rotor warping @ low mileage? I have a 2017 MDX w/ <5K miles

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At every application of brakes at slow speed: sounds like uneven scraping even without brakes being applied. Car is only 4 mos old with less than about 4800 miles. Dealer wants to resurface rotors under warranty. Problem is on previous 2009 MDX , had similar problem @ low mileage, same recommendation. Had to shave off so much of rotor to true it up, that on subsequent brake replacement, was told that remaining rotor insufficient and rotor replacement was required. Replacement cost for just out of warranty (50K?) approached $1k. Don't want to replicate this transfer of responsibility for what appears to be a manufacturing defect. Wonder if this is a chronic problem w/ MDXs?