I understand your concern. To be honest, whilst they are focusing on Gambit, since this is all about the Drifter and to an extent, the Nine, I feel that Bungie have let the rest of the base game suffer as a result. Small things such as including one or two new Vanguard strikes and Crucible maps each season and then adding some new Crucible game modes would have at least allayed some fears about the game. However we have not yet seen what else Bungie have to say about Season of the Drifter or Destiny 2 or the state of Destiny 2 right now as they appear to be keeping their cards close to their chest.