No, it's better than that. It detects evidence of the cryptanalytic tricks that were used to generate that collision. So it will find any collision generated us

No, it's better than that. It detects evidence of the cryptanalytic tricks that were used to generate that collision. So it will find any collision generated using their attack technique (which is ~2^63 operations, as opposed to 2^80 for brute force). There may be new disturbance vectors discovered as the attack matures, but they can be added to the detector.