I don't really buy that argument. I guess if it works for some people that's cool, but I find that since Red's dialogue is entirely written anyway, including lots of internal thoughts, his feelings and reactions aren't particularly open for interpretation or immersion. I don't think taking the pictures away does much to improve this.
Obviously this is not and should not be Knights of the Old Republic; there are only so many actual decisions and reactions the player gets to make, so I very much see Red as his own character, a seperate entity from myself that player. Fortunately, he's been very well written; he has lots of personality and charisma* while playing the straight man just enough to let the player relate to him as much as possible. The quality of writing for Red and most other characters far exceed my expecations for a fan game.
* the ease in which he gets other characters to like him much more believable than say, Fire Emblems Awakening and Fates.
Look, even I want it back, but it's what DM says, and I believe the logic is sound. How could we even consider Red his own character when we've only seen a week of Gameplay that isn't even final? Normal VNs don't have the characters photo at the bottom ever, so there isn't a real point for it to be here. I know that logic is a bit skewed, but thats how I feel. It adds nothing, therefore it doesn't need to be there.