https://www.forbes.com/sites/danielreed/2016/04/14/americans...
Regardless, not only do I think I would I appreciate the shorter, more violent flight more as I got older, I would also appreciate the roll of the dice that if anything goes wrong we just all die instantly. Not a bad way to go, really.
If the G-forces are unpredictable, well something went really really wrong.
But you are probably right in that there will be more medical restrictions than there are now. But someone with a spinal injury, or who is very pregnant, or very weak from age probably isn't going to be flying in today's aircraft either.
It's surprising (to me at least) that it's not always instant. For example on the space shuttle Columbia, the astronauts went unconscious after a few seconds as the spacecraft was tumbling and breaking apart [1] but it's plausible that they could have regained consciousness if they survived the violent episode inside the shuttle as it broke apart.
1. https://www.nytimes.com/2008/12/31/science/space/31NASA.html