I'd sure like to read a convincing argument against my chassis and frame bonding to earth ground right at the site. I've seen some mighty strange stuff down here such as line leakage to earth resulting in a shock when touching a properly ground bonded rig. Symptom, barefoot children squealing when stepping onto concrete steps from bare ground. Line voltage leaks into the earth can and will travel through moist earth and contact neutral or earth which can result in a lethal shock.
This is why I never connect before measuring voltage
L1 to L2 to earth ground
L1 and L2 to neutral
Neutral to earth ground.
Newbie US NEC code engineers should have a pass=fail exam that takes place in Mexico.
Like a ship unless I can manually disconnect Quicksilver into having an isolated chassis. With option to manually tie ito earth ground.