Why do you have to be alive to receive Baron buff?
Per title. It seems a little odd to me that you have to be alive in order to gain the Baron buff.
Let's say you start a big team fight around Baron, other team contests, most of your team (let's say all but you, for argument's sake) dies, and you manage to secure to the buff. Now you, and only you have the buff. And that's if you don't die afterwards.
Just seems like a pointless dynamic - just make it team-wide...