[gregallan]

I think the difference is that in this context it’s at least as much about what the other players are doing as the way the game actually works. Learning how to operate within the new rules is still just part of the game. Learning how to counter those strategies when your opponents adopt then would be considered the metagame. And sometimes the meta changes not due to changes in the rules, but simply because someone has an innovation in strategy or tactics which starts to be adopted en masse. Then someone figures out how to counter that and the cycle continues.