The Corpreal Beast, on RuneScape Gold contrary, was deliberately designed to not use the mechanics of a cemetery. I'm sure Jagex noticed the error and was embarrassed by the bosses of care bears that created gravestones to avoid any chance. Now you only have 2 minutes to return to your belongings. It's not possible to leave the property before it's the public's loot.
Finally Nex. I'm yet to take on her. But, given the fact that many people believe that Jagex worked on the update for quite a while, it would be fair to suggest that Nex was designed to incorporate these features. Although a blessing may be able to help you return to your grave, it's my opinion that this should be a part of Nex's concept.
All other bosses were created to be used with no gravestones. You can get things back from Bandos KBD, Chaos Ele and Mole when you own graves that don't have bless. DKs are, Arma, Sara and Sara are located on graves with blessing
Graves also reduce the likelihood of RS3 Gold in a significant way. Although we know that not all people will visit your grave to get their hands in your rage, it is normal. It's not because they're a penis. This is the way that the RS Death Penalty operates. Graves have distorted this.