It's a fair assumption to make, as the difference between Tron and Snake is effectively just single player vs multiplayer.
> TRON's trail is static, Snakes body is dynamic.
And that difference only exists to support the single player vs multiplayer dynamic. If Snake left a Tron tail then it would be a very short, unfun experience. If Tron didn't leave a permanent trail then matches would last too long.
Maybe the single player vs multiplayer difference only exists to support the different tail mechanics.