This would depend, I reckon, on whether ones emphasis was on user experience or user interaction.
Games are great for user experience, because gamers are, by definition, looking for an experience. They aren't there to get work done, they want to have fun. So a fun interaction paradigm, with creative visuals, sound effects, various game-related skeuomorphisms: all of that is what they want.
User interaction, on the other hand, is about keeping the software from standing between the user and what the user wants to do. A large part of this job is insisting that developers don't do surprising things, but rather, stay within the lanes of expected interactions for the platform. There's room for creativity and novelty, but the budget for those must be spent carefully.
Games are great for user experience, because gamers are, by definition, looking for an experience. They aren't there to get work done, they want to have fun. So a fun interaction paradigm, with creative visuals, sound effects, various game-related skeuomorphisms: all of that is what they want.
User interaction, on the other hand, is about keeping the software from standing between the user and what the user wants to do. A large part of this job is insisting that developers don't do surprising things, but rather, stay within the lanes of expected interactions for the platform. There's room for creativity and novelty, but the budget for those must be spent carefully.