No, you're missing out on something here man...
If Memphis makes the finals, it literally does not matter who they play, EVERYONE will be watching.
Only 3 other 8 seeds have ever upset a 1 seed to even make it out of the first round. None of those teams have EVER made the NBA finals, ever, actually I'm fairly certain none of them made it through their second round.
All Memphis has to do is win the next round and they'll already have gone farther than any 8 seed in history. If they somehow manage to become the first 8 seed to ever make the finals... wow.
You're telling me that won't get ratings? Come on...