Maybe this why the Fighting games and Starcraft/MOBA prove to be better e-sports for audiences.

Thinking about it, Quake, Unreal and Halo really are better for spectators. Simplicity rules when all you can see is a single viewpoint.

With Starcraft/Moba/Fighters, you see (most) or the whole field, and that is VITAL for an enjoyment of a competitive sport.