Is this a good way to burn off extra fuel
Widebody jet, 30 degrees C, full takeoff thrust required, max taxi weight but due to a runway change, the planned taxi routing runway is shorter than expected.
500 kg need to be burned before takeoff is legal. No problem, just ride the brakes with a higher than normal thrust setting. A parallel taxiway is available where we could stop and burn off fuel but when questioned, the captain says he has done this before. The other crewmembers don't seem concerned either when I ask about checking the brake temps. Saw one of them at 2 units a couple of minutes before takeoff.
Do I worry too much about this? Are carbon brakes so good that it is not an issue? Or is it poor airmanship?