I realize the thread is about the send army screen. The major problem sited is only being able to see (not quite) 6 generals at a time. Which is why I brought up pinning the star menu and using the to adventure button. With pinning the star menu you can see 21 generals at a time, which I thought addressed the biggest part of the complaint.
Both screens are time consuming and annoying if you ask me, but after a while, I came to prefer sending from the star menu because I know the order of my generals in star, and it's always the same order when using star, unlike send army, which jumbles them around in a different order every adventure, which adds to the time consuming part of it.