"I like it... but it's not really a game."

Windows / Mac / Linux
Thank you to all who have played and commented on my game! I'm thrilled that people seem to be enjoying it.
I am surprised that I seem to be getting a permutation of the above comment a lot, questioning LOW BATT's game-ness. Although I wasn't expecting this view, I'm always happy to inspire controversy.
Should I have tagged this as a "nogame"? To quote Bernard Suits, a game is:
...the voluntary attempt to overcome unnecessary obstacles.