The match story was dominated by two plot-lines: the dismissal of Real Madrid defender Pepe, and the hat-trick returned by long-running Manchester United target Thomas Muller, who now has a good chance to win the World Cup's Golden Boot prize for a second tournament running, having bagged the award in 2010.
Gray continued: "[It is] hard to judge [Germany's performance] overall as they played against ten men due to our old pal Pepe, being an idiot, again.
"Prior to that I thought Germany were excellent. The 2-0 lead they built up before the sending off, they were in total control of the game, they played four centre backs in the back four which was interesting but the way they rotated around the front around Muller was terrific."
Currently on World Cup duty with the Netherlands team, Louis van Gaal joins United once the competition reaches it's conclusion. The Dutchman, who was integral in the development of Muller during his time at Bayern Munich, reportedly had identified the forward as one of his priority targets, as stated by the Daily Mail last month.
Gray's comments, though, serve a reminder to what United could have bought - as Muller is now effectively off-radar due to the confirmation of his contract renewal last week.
"He is what I said four years ago… one terrific footballer who you'd love to have in your team. He's terrific."
Gray continued: "On Pepe, if it's violent conduct, he should get three games and the way they played tonight [there's no guarantee] they'll get out of the group. Ghana and USA in that group - that's not easy. I hope he's penning a grovelling apology to his nation's fans as they deserve at least that."