Both of those logos are stylized in the same way, as they are shiny, jagged types with swords and shields. You're being a little picky there.
Again with the names. You said it yourself: The name alone doesn't accurately tell you what the set is. The Troll Battle Wheel sounds innocent enough, but when you figure out that it's a giant hamster wheel..........
Personally, the Robo-Horse sounds like a one man Trojan Horse. That would make it brown. Trojan Horses are plenty historical. Perhaps we should change your member title to "Scared of the word Robo"?
The He-Man speculation has nothing to back itself up, it's just some members voicing their thoughts. The steampunk rumor is real though, and I just talked to a store manager today who told me exactly that.
Ya'll will get used to this theme, and there isn't a doubt in my mind that this will be accepted as the sixteenth Castle theme in time.