Short answer: they took all the requests we wanted and put them into the mobile game. Long answer Bungie is tearing itself and the community apart for the last 10-20 years, from Halo to Destiny. Given how many of the founders have left, been fired, or are being held by the collar by Sony, it's only going to get worse. That, and there's a chance that a majority of the original voice actors will join the mobile version with better pay and requests.