Eagle: automatic via creation to different layers?
I haven't used Eagle in a while, but if I remember correctly, at the bottom left of the screen after you hit the ratsnest button, it will tell you how many airwires are remaining. I expect the airwires are still there, but since the nearest ground connection is directly beneath the pads then they're vertical (not showing up very well when viewing from the top or bottom). Unless this is a new feature in Eagle 7 (doubtful) then you will still need to create vias next to the pins that need to connect to ground.