I keep my notifications on the "All" tab, and rarely use the "Today" tab, so I don't really have an issue. I also noticed that your Yahoo "ad" is more prominant on your phone...it looks like you have "Reduce Transparency" turned on, which makes it stand out more.
Actually, after fooling around with the transparency settings, now the Yahoo ad doesn't even show up on my notifications. I guess it is there sometimes but not all the time...?