you are more likely to hit the nosewheel first
you might use more runway than you have available
you might be less spooled up (in a jet) and be less able to correct with power.
you will have less of a chance to see the runway off an ILS
uuuh... changing weather or view settings may help in seeing the runway , but the idea of using more of it than available really is only something for outdoor camping fans, i agree !
a very odd method to prevent all this catastrophics might be using the correct approach speed for the reduced flap setting i would quess ?
cheers !