Because the truth is there’s no well reasoned mechanical reason to have a single currency be the focal currency of two disparate progression systems (Infusion and Masterworking). I think there’s no way around the reality that Bungie simply has been lying to players, and cores were added to the infusion economy purely to slow progression down and try to inflate player play time. Despite the massive outpouring of negative feedback and people actively telling them it caused them to stop playing or not bother coming back to the game, they must still believe it’s doing enough to inflate play hours to not want to give it up without some other scheme in place to keep players grinding away. I think their reaction to the situation is deeply short-sighted, as was the move in the first place, and they’ve spent 7 months bleeding away consumer patience, loyalty, and respect because of it. They’re screwed long term now, and I don’t think they can pull out of this death spiral.