Load Range D tire confusion

JIMNLIN - Over the years I have read and respected your opinion on multiple topics. I can certainly appreciate that moving up in load range is not needed, but might it provide a bit extra protection against tire mishaps? The factory "All Terrain Package" that you can get on the Viking 17FQS does two things: upgrades to 15" wheels and flips the axle. I will double check, but I believe there is plenty of room for the extra 1" radius, without the axle flip and I don't particularly want or need additional ground clearance. As the 15" size is a factory option, I thought the only downside to doing it would be the (minimal) additional cost. Thank you for your thoughts.

John