There's no secret that GSP is starting to show those signs of age the same way Fedor started showing them at 32. It's the reality. He's still a fantastic game planner and a physical specimen, but GSP's days are numbered. If he wants to go out on top, Hendricks isn't a bad way to go.
His career will continue to go south until he eventually loses. If he wants to end with that legacy he always talked about in the past, the moment is here. Guys like Penn, Couture, Fedor, etc. stuck around too far passed their best years. GSP wanting to avoid that isn't a bad thing. I wouldn't be shocked if Silva beat Weidman and called it a career either. Avenge the loss and be done.