George I do not believe the NEC applies to this factory installed receptacle.
IMO 90.7 makes this clear, here is the second paragraph.
It is the intent of this Code that factory-installed internal wiring or the construction of equipment need not be inspected at the time of installation of the equipment, except to detect alterations or damage, if the equipment has been listed by a qualified electrical testing laboratory that is recognized as having the facilities described in the preceding paragraph and that requires suitability for installation in accordance with this Code.
I agree with Kent that this would be no different than an inspector refusing a stove for a 310.16 violation.
How about a dishwasher? All the wiring is out in the open using the floor, wall and cabinet sides as an electrical enclosure.
I think it would be a great idea if UL did require a good quality in use cover on these unit.
I do not believe it is within the local inspectors jurisdiction to require it.
JMO, Bob