it seems to me that HDR has run its course. We see less and less of them on the web or social media and I personally don't miss them.HDR was new and unique when it came out but quickly turned into a fad.Don't get me wrong, increasing the density range of a digital capture is useful and often very powerful but simple manual exposure blending does a very good job in PS without the surreal look and additional software required(I compared them)In my comparison exposure blending did a better job and gave more flexibility than Photomatix or PS's HDRPo.
But seriously, if you over-expose highlights with a digital shot, it's gone. But if you over-expose neg film, you can sometimes recover some detail through another scan or in the darkroom, do some burning in.