I was told traction control utilizes the brakes non stop to control traction.
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I don’t think so. Traction control controls the tire spin when accelerating. I think you’re talking about ABS.
And IF your wife’s car needs a brake job at 33,000 then one of two things are likely.
Your wife does a lot of city driving. Or she’s like my wife...
Full on gas pedal - Or full on brake pedal.
Some of the more modern, complicated and expensive systems work via operational inputs to/through the transmission and/or differential, but the most basic systems operate by applying brake pressure.