I wonder if you would be willing to acknowledge that aircraft maintenance and automotive maintenance involve a different importance.
If an aircraft experiences failure, lives are at stake. If an automobile ENGINE experiences failure, you coast to the side of the road, step out and start looking for a phone. The consequences within these two separate scenarios seem quite different to me.
If the manufacturer were not taking such a stand pertaining to permanent lubrication, I would not have made the same comment.
Have a great day,