Why RF "hot spots" are points where you can get an RF burn or stray RF current because two pieces of gear sit at different RF potentials. Short, wide bonding straps tying all chassis and enclosures together put everything at the same RF potential, so there is no voltage difference to burn you or to couple RF into audio and control lines. This bonding is separate from safety and lightning grounding, though the bonded bus should also connect to the station ground panel with a short conductor.
Watch out Metal enclosures alone do not help if the cabinets float at different RF potentials from each other; the shielding only works once the boxes are bonded. Low-pass filters address harmonic output, and surge suppressors handle AC line transients, neither of which is an RF potential problem.
Hot spots come from voltage differences. Bond everything together and there is no difference left.