gas piping rusting in the dirt older home

The inspector observed significant rusting of the gas pipe that is partially buried under the living room. The
inspector recommends repair/painting or replacement as directed.

Today's standards required in my state gas piping under ground or in the dirt to be in a protective sleeve or protected from corrosion. This one was not and rusting a lot, since I can't observe what it looks like that's buried I wrote it up. I'm wondering if I should have explained more about it or wrote it differently. I may be over thinking this, it was not leaking at the time of inspection. But in my mind, no one is going into a tight crawl to check for leaks in the future.

The standard I reference states protect piping subject to corrosion from soil or moisture. Code check 2nd edition, 2009 page 98