Safety factors matter in power racks and squat racks because the equipment supports loaded barbell movements that can become difficult quickly. A rack can make home barbell training more manageable, but only when the frame is stable, hooks are set correctly, safeties are positioned for the lift, and the area is clear.
A good rack safety setup is not just a high weight rating. It includes stable construction, compatible safeties, secure J-hooks, enough working space, careful plate loading, and habits that account for missed reps before they happen.