Well, for one thing, we wouldn't be looking at a lawsuit that has charter ownership at its core. Seeing charters taken away with no compensation can't look good to potential new manufacturers, or to owners NASCAR would really like to come on board (JRM).
NASCAR doesn't need to hold the charters to determine how the money is split. When the terms of the TV contract changed, NASCAR told the teams how much they'd get. In the end, there was no negotiation of that. Indeed, it tells the non-chartered teams how much they'll get. For decades it changed the rules regarding who was guaranteed to start and how money much they'd get, and it didn't need charter control to do it. If there's no negotiation leverage for the teams, if NASCAR can make and change rules as it wishes, if giving the charters directly to the teams doesn't affect how NASCAR runs the sport, why bother with complication of charter contracts?