And the funny thing is that a zoom out function was included but they purposely limited it so ganking was more possible,
Ugh... That's a shame, surely they could have just worked with fog of war.
I also use my keyboard to scroll my camera on DG, so it's infuriating to me to have to drag my mouse away from what I want to click on to see correctly on HoN. 
Basically for me DG blows HoN/LoL out of the water after a functioning game has been started, and HoN takes the crown when it comes to the absolutely amazing interface leading up to that point.