An Australian engineer working for NASA explains..

Yeah, nah… we spent a shit ton on the electronic bog and the high end cameras and stuff. But, yeah, the heat shield was going to get an upgrade.. but.. it’s not top notch I’ll grant but we reckon it has a better than even money chance of hanging in there at the franky terrifying temperatures we expect to experience on reentry. When I say we, I mean those four amazingly brave and trusting souls in the capsule.