Unfortunately, I'm almost seeing where this is coming from. It could be said that a "framework game effect" is an outcome that results from the game itself - i.e. the "rules of the game". Placing blast damage and rewarding unopposed happen because they are part of the "framework" of the game. Something like Target of Opportunity, on the other hand, could be seen as more of a "card effect", something that happens because a particular card says it can. I know it's a weak argument, because, hey, that Blast Damage icon is part of the card! But it's the best I can come up with at the moment.
I think it could have been handled better. The wording is clumsy, the term is not defined, and placing it at the very end like they did feels like they tossed it out there and ducked out of the room. As dbmeboy said, a definition of the term and a little more detailed info about how it fits into the advanced timing rules would have been very helpful.