The problem with that write up, and all the others like it, is that its based on a fundemental misunderstanding about power.

The 'full alternator power' NEVER flows through the ammeter.
Power flows from the highest voltage source (usually the alternator) to the equipment, be it ignition, headlights, or whatever.
The only alternator power through the ammeter is power needed for recharging.

The problems occur when the battery is run down a lot, then needs massive recharging; and more so when other stuff is attached to the battery side. Stuff like winches.
It did not help that the ammeters on a several years of those trucks were in plastic housings. Running 40 ampos or more through those circuits was bound to heat stuff up. Then the pressed studs got loose.

But that doesn't change the fact that I began with. On a truck with no added accessories, power from the alternator does not flow through the ammeter, except what is needed to recharge the battery.