If canon wrote it, then ok, it's more believable.
But still, 4 in Chinese / Japanese is 四, 'sì' in Mandarin. Death is 死, 'sǐ'.
They've just proven that there will be no G13 or G14 (14, 十四, 'shī sì', sounds like 尸死, 'shī sǐ', 'dead corpse', 逝 shì means die, 弑 shì means 'murder a superior' (yes, I just went through my dictionary and found them)).
So, it's gonna be named 4D then. And it will be their 'killer" camera.