You know, thinking about it, if they keep this sort of shading going on, then the random humorous scenes will play out fine. Its still far enough from realistic to play fine.
The #1 biggest issue this game will face will be the Voice Acting, it will make or break the mood of the game. We all played FF7 without it, we all have our own voices in our heads, all the charecters in our heads read every line of dialogue in perfect fashion for the emotions we are experiancing in the scenes. Its going to be a tall order to find good VO talent (which I feel square has been the worst in the industry at) that will play these scenes well enough to get it right, esspecially considering how FF7 can go from super dead serious melodrama to odd ball panty stealing.