Well the "right now" at that moment (T+) according to all of the perpetually inertial observers at rest in her frame is when all of the synchronised clocks at rest in her frame display 40. All of them, including hers. So the "right now" at that moment would have her die at 40. That makes his answer of 26.67 incorrect. Unless you want to tell me that your guy (saying if she dies now she'd be 26.67) and the PIO standing right next to him (saying if she dies now she'd be 40) can both be correct?