Cannon only matters from a depth perspective. 40k is intended to be a silly franchise from a lore perspective. But consistency goes a long way to making even

Cannon only matters from a depth perspective. 40k is intended to be a silly franchise from a lore perspective. But consistency goes a long way to making even the most ridiculous settings something people can engage with. Autobots v Decepticons, Tom v Jerry, etc all rely on people being more engaged with what they would be based on what’s on the screen in that moment.