This doesn't mean you can skip a step by simply leaving the seat down while using it if you're standing up. No one wants to sit on a toilet that has recently been splattered with urine. Men, lift the seat before using the toilet to create a larger target. Pay just a little attention to your aim, and you will avoid having to wipe down the entire thing when you're done.
Users of both sexes -- including those who perch themselves above the seat for sanitary reasons -- should take the time to check for any stray urine and get rid of it before leaving the commode for the next person. And ladies, if you're having your period, don't leave any evidence of it around.