Metal Gear Rising: Revengeance Total Play Time Revealed, Just 5 Hours Long?

Gamefaqs user "Dominus_1" has posted a new image related Metal Gear Rising: Revengeance. It showcase game's total play time and other stats.

As per the details in the image, Metal Gear Rising: Revengeance total play-time is 5 hours and 30 minutes, isn't it too short?. It is very much possible that this play-time doesn't include cut-scenes in the timer.

You can check out the image below, and let us know what you guys think about it.