Is a 3/10 for a game like Resident Evil 6 justifiable?

[WiiBox3]

Pavolink said:
In my opnion, this should be the new scale:

10 - Decent
9.9-9.7 - Okish
9.6-9.5 - Mediocre, rental if you feel generous
9.4-9.2 - Only as a gift
9.1-9.0 - Who made this crap
8.9-0.1 - ET quality, burn in the desert

Love it. My buddy had a review site that went from -10 to +10. -10 was Burn it in hell, 0 was Meh and +10 was the best thing ever. They used the whole scale.