Of course it is. This is the same scenario as the Age of Empires thing. Most people pick one character that speaks to them most and then stick with it, which has a high chance of being in the main roster, even if you got all the DLC. If you’re only playing on the couch with friends, you’d never even know if any other characters ever came out. Depending on how the game handles it, if you’re playing online against people with the DLC, there might be a problem with going into training mode to figure out how to beat that DLC character; this is a problem that’s trickier to solve than you might think, but devs have been trying to address it lately.

The developer of this game is a little bit of a mystery, but it smells like it’s composed of the former devs behind Diesel Legacy (which sold for $30 and had no DLC) and Them’s Fightin’ Herds (which sold for $15 and one season of DLC), and that means this team is quite small.