No but if you were to drive as if you were expecting a cyclist around every corner where you can't fully see the exit then you would have to drive at roughly the speed of a cyclist (or worse a pedestrian). How often do you do or see that? Like lots of things with driving you forget the reality that you are driving a tonne of metal at speed that could kill you or others on any bit of road where you don't have a 100% clear view and just get on with it, otherwise no-one would get anywhere.
A lot of it just comes down to luck that no-one happened to be in that place at that time or if they are that no-one is coming in the opposite direction.
You should drive at a speed that means you can come to a stop in half the distance you can see, isnt that it?
If that means slowing to a crawl, so be it.