Thanks for your input, @La Ingobernable.
Ragnos' gauntlets do require Jedi Defense as well to be worn. It may actually be so that Bioware intended to have items restricted to Jedi only if the properties of the item itself apply to Jedi only. That would be consistent with the gauntlets and the fact that the Circlet of Saresh and Tulak's mask can in fact be worn by Jedi.
Perhaps changing this would be a mistake, after all.