There's a difference between complexity and depth. For a start, depth is good, complexity is bad. For another, making goto and attack commands a two-click process instead of a one-click process is needlessly complicating the interface. Of course, it's odds-on that the maker of the video chose to use the most long-winded method, as all such promo videos do.
Possibly because they wanted to attract the market segment that had to use a command-driven interface with a text-parser written by a non-native dyslexic for so long that they convinced themselves that they liked pain. Or maybe not; it's a mystery.