Headscratchers / Super Robot Wars 2

• Why was UFO Robo Grendizer even included? The aliens aren't supposed to show up until Super Robot Wars 3, and Duke Fleed is an ALIEN!!!!!!
• (The defection of Reccoa Londe and the brainwashing of Four Murasame occur in this game. That's fine...until it happens AGAIN in the exact same manner for the sequel. Why does no one mention it there?