I think it'd be more fair if you got your items back if it's a glitch and jagex's fault, but it's too unrealistic. It's Extremely rare to lose items by dieing from a glitch, and people would misuse it if anyone remembers the 666 massacre, there was a crowd of people with over 50 people claiming they had lost party hats, but in reality, no more than a few people really lost major items. Sure, it'd make it more fair, but only if they could figure out a way to make it work without people claiming they lost items, and i don't think that's possible.