poetic license

The right that an artist (occasionally called artistic license) or writer has, to let him or her deviate from fact or conventional ideas. This is usually to make things more interesting, or try to introduce radical ideas.

This is commonplace from past to present, from the history of music or the history of games; companies and people have tried something crazy and new, and people liked them, like the Team-based Realism Genre that Counter-Strike introduced, or the RTS\\FPS hybrid that Natural Selection and Savage have used.