Specific dynamical mechanisms, such as jet stream orientation, dry intrusions, and air-sea interactions, govern the varying intensity and power of extratropical cyclones.
The retrieved papers provide specific physical mechanisms—such as dry intrusions behind cold fronts (Paper 1), jet stream orientation and baroclinic residence time (Paper 6), and air-sea interactions over western boundary currents (Paper 8)—that explain why certain extratropical cyclones are more powerful than others. All relevant evidence supports the claim.