I'm going to sidestep the argument here and just answer the question:
Yes, there's a lot more than zoning and resets in Injustice. There are spacing games, baiting tactics, a lot of useful specials that aren't zoning-based, meter games, all kinds of crazy mechanics (see Hawkgirl in close). Not every combo ends in a reset and sometimes it's more important to keep people cornered after a knockdown, save meter, put distance between yourselves, build or activate trait, go for an interactible or achieve some other goal.
There's a lot of metagame and it's very character-dependent.
If all you can do is zone and reset people, you probably won't get very far unless you're playing brand new players.