It kind of feels like the original concept would've worked better(with the huge airships and flying units and lots of dragon knights and lots of different dragons and battles). But during development they decided to scrap that idea and remade the game. And as a result, to me, it feels like the game wants to be something it isnt, and that features are missing. The game is fun, yes, but it also feels incomplete at the same time. It's as if they didn't have the time to finish the game.
If you have the imperial edition take a look at the prototype screenshots those look epic.
The thing about having other dragons flying around during RTS is that it would have really made it a different type of RTS game. While this game does bring the ability of becoming a dragon yourself during the RTS, the rest of the RTS is pretty standard and average fare. Now if I had to deal with average RTS, plus watch the moves of an opponent dragon, and get into dog fights with it when it move in to destroy my units ... that a whole new ballgame.
Currently though turning into a dragon is basically a automatic win card for me. I can take a battle that has 7%/95% odds and win by using the dragon form.