I didn't think about it until we started work on the follow up to Steamalot (Gasp! YES it's really happening), but a lot of time, testing, and reworking went into these levels. They had to be challenging vs AI or vs human opponents who could be playing from either start point. With a 7x9 grid they also had to have enough variety between them to justify the number of levels we have in the game. This came doing to trying to adapt certain levels to play to movement and attack styles of different characters that appear in different parts of the game. You can also see how I changed the locations of spawn points to change the entire way a board is approached. This really helped us save on size for mobile games as well.
I hope you find it interesting, and give the game a shot. It's un-named sibling will have bigger boards with 3D assets ;-)