The logic is a bit bamboozling you have to admit. To paraphrase:
"I didn't like Civ 4 which got a 9.4, therefore I wouldn't like Civ 5 which got a 9, so it is great that instead I bought Elemental which got a 6."
Either he cares about the IGN scores in which case he should clearly be playing Civ 4 (or 5) instead of Elemental, or he doesn't give a hoot about the IGN scores in which case why is he criticising Civ 5 for getting (marginally) less than Civ 4?
Not that I really care obviously - if he prefers Elemental and that is the game he bought then, great, big win for him!
I just couldn't resist commenting on the logic 