I don't think any one game is a defining moment in time for the franchise. IMO, a defining moment would be an ability to win consistently at or above .600 for a quarter of the season. Specifically, the first or second quarter of the season. It seems we have multiple "must wins" and "defining" games which just doesn't make sense to me. This team is so inconsistent in effort and execution that one single game does not define what type of team they are because the next game they too easily revert to garbage or be lights out. When there is no foundation there can't be any definition.
I appreciate your optimism, and I really wish it were so, but this team lacks an ability to put individual skillsets together to form a team of players that compliments each other. Even if they win 10-0 tonight, it is not indicative of turning a corner. They have to win consistently for an extended period of time for that to happen. Unfortunately, it's something this team has been unable to do for years, and time is running out.