If you don’t want a part of your body to get sore, then that part shouldn’t be pushing against something that doesn’t move along with it. That’s the thinking behind the vabsRider bicycle saddle, the two sides of which pivot in time with your pedaling.
I can’t really tell from the visuals but it looks like they don’t really get that close together. The two sides seem like they say hello to each other, but they don’t really get that close. So presumably but there’s quite some gap in the mechanism.