This might also explain why the first party luggage loop accessory seems to have been (unfortunately) memory-holed. I think third parties still sell them out of excess inventory, but they've been harder to come by in recent times.

My current carry-on doesn't have large enough attachment points to easily accommodate the Apple leather case's keyring, so an updated loop would have been welcome.

Mine is duct taped inside the inner liner of the carryon that has a small zipper for cleaning.