it makes perfect sense that Barker gets some of the proceeds. He lets a drummer take his place and gets 1/3 of the money. Same thing would happen if I had bartending job and let one of my friends take my position. they would pay me a percentage.
The 1.5million to be paid if they use the name Blink is odd. I don't see him saying something like that to Mark Hoppus. They aren't sticklers like...Tom. But alas, business is business. Money comes first. Before Friendship, before Family, before women.