Harper batted 7th (NL lineup too), Corea 6th, Buxton 9th, the list goes on. People here are being ridiculous. 5th is a perfectly respectable spot for a 20 year old rookie to bat in his MLB debut.
Like honestly it would be insulting to the other players on the team like Smoak, Grichuk, Galvis if Guerrero was penciled in ahead of them for his f***ing first MLB game.
The overreaction is real.