Two quick suggestions to improve the spectator mode:
1. The spectator mode should definitely allow you to shift camera by double clicking the icons on the minimap. This was just something that I intuitively tried to do while spectating.
2. I can’t really say that the static cameras at each point are that necessary or at very least need some improvements. It seems like it would be ultimately be in a caster’s best interest to have all the information provided by having a player’s point of view rather than the blank screen given by these pre-placed cameras.