I guess Bungie wanted to spend their money on promotional ads featuring led zepelin rather than take the time give the player character a voice in the expansions. The interexchange between player character and npcs was perfect in the main story (granted it could have used more with dialogue options, but that's besides the point) with your ghost sort of chiming in as well, and just speaking on behalf of the guardian like he does in the taken king. Why do you take one step forward and two steps back with everything you do Bungie?