Okay, it might seem a bit childish, but it gives off the atmosphere of "let's break it down to the simplest level". The point gets across and it gets across without actually pooping on anyone.
It reminds a bit of the "This is you brain. This is your brain on drugs." ads. And I'm not just saying that because the guy in those ads was bald. (Is that guy who gets drawn in later a doctor who shares Jack's hairline, or Jack himself? If it's a doctor - very clever).
Bold, simple and clearly declaring the difference between one side and the other. The NDP have a plan, the Conservatives do not.
If only the entire election were based on clearly declared positions like this, instead of nonsense and poop.