Read the text, not the stupid comic, goy.
Don't be a dick. The first paragraph of the petition clearly reads:
"Following Microsoft's U-turn on its DRM policies, including making the Xbox One region-free alongside the PS4, Nintendo is now left as the only major console manufacturer that maintains a region-locking policy." Translation: Nintendo, your competitors aren't doing it. That's all, full stop.
The rest of the petition makes the case that this practice is restrictive to consumer. Look around — importers everywhere if one wanted to buy the games, with or without region-lock.