"Moved" is the key word, and I'm not sure how accurate it is. To this point the only game that was literally moved was USC, and I didn't like that much at all to be quite honest. Everything else, be it last year's Penn State game, this weekend's ND game, or any of the 10 potential games starting in 2019, were intended to be at MetLife. Would those same opponents come to the Dome? Maybe, who knows? But the intent is MetLife, that's how SU would presumably be pitching it to potential opponents, so I would hesitate to use the word "moved".
LSU agreed to come to Syracuse. But if we were to play, say, Alabama in 2019 at MetLife, it's not clear that they would have just come to Syracuse instead. MetLife may be a tool to play a broader range of attractive OOC opponents.