It makes perfect sense to push the game to Friday.
Gives the team a day of rest after traveling from a night game the night before.
Opening Day isn’t just a regular game. With all of the on field pre-game activities why ask people to slog through the rain for that?
And this wasn’t just one of those 50% chance of spotty showers. Widespread rain is predicted today.
Seems like a no-brainer to me.