If all's fair in politics...
Both Warren Kinsella and Jordon Cooper think the ads are suckerpunches.
Kinsella thinks that the ads are at a strange time and reflect the CPC having too much money. The ads show the CPC to be in trouble.
Jordon Cooper thinks the ads reflect strange timing and are concerned with the environment (the Libs leading the CPC by 4 points on the environment currently). The ads are no knock-out blow, either.
Both are right that the ads are suckerpunches, if by suckerpunch you mean a punch out of turn. They are not in an election and so are out of turn. They reflect true criticisms, though.
The point of the ads, in my opinion, is to preemptively strike Liberal ads. If the Libs respond, then they are dragged into a game they didn't start and the Cons think they aren't prepared for. If the Libs don't respond, they had better hope the Canadian public sympathize with them, because the messages are clear and easy to remember. If the Cons are as smart as Stephen Harper, then these ads aren't their only ammunition or strategy for negative ads. Contrary to Cooper, you don't knock someone out with a sucker punch unless you can't beat them in a toe to toe scrap. I'm thinking the Cons are prepped for a toe-to-toe but I'm betting the Libs are too smart to retaliate.