<prompt> Translate the following text to EnglishIngawa ukosoaji wake katika Passive Aggressive ni haki juu ya alama, Daniel Akst haja ya kuwa na hofu ya bure riding wawekezaji index ambao kujitahidi kwa mediocrity kwa kuwekeza passively.  <response>: Although his criticisms in Passive Aggressive are right on the mark, Daniel Akst need have no fear of the free-riding index investors who strive for mediocrity by investing passively. 