authority (the broad class of strategies whereby, instead of resisting attack, a group neutralizes the attacker) isn't something that just magically comes out working perfectly. competence needs to be developed, practice is required, and mistakes get made (especially early in the development). this goes for budding self-defense enthusiasts as well as standard law enforcement who, although they have plenty of experience with traditional crime, are still working on getting up to speed when it comes to cybercrime. as increasing reports of arrests show, they are getting there, but there's still a long road ahead and law enforcement is only one part of the equation (sometimes the laws have catching up to do too).
until that catching up happens, though, their efforts are going to be laughable at best.