However, this really isn't a solution. The problem was in the wiring, not at the outlet, and this would have done nothing to prevent the fire in the OP.
The real key is proper maintenance and regular inspection.
The one location where the thermal circuit protection really makes sense is the main shorepower inlet socket...since that is the most exposed and generally receives a lot of wear and tear. Smartplug has a new shorepower inlet that is thermally protected and the pin design is much better than the old 30 amp twist-lock connectors that are the current standard.