We do know that the crew was notified of the hot axle by an automatic defect detector. I don't think we know yet what their reaction was. If they didn't brake.

We do know that the crew was notified of the hot axle by an automatic defect detector. I don't think we know yet what their reaction was. If they didn't brake... then the brake technology had no effect. If they did brake, more sophisticated brake control systems could definitely stop it faster, and would reduce internal stresses that can could contribute to derailment. My personal speculation is that the crew tried to gamble and get the train to a more convenient stopping location, either of their own volition or as directed by dispatch.