See, it doesn't bother me, actually. When I finally beat Oblivion and start playing Skyrim, or if I start playing Fallout 4, I don't expect my progress to carry over from my last game. I "LIKED" how some of my RPG decisions in Mass Effect carried over, but the only game that carried over SOME progress between titles was Shenmue 2... and that was only a small savings in training/grinding time. I paid a little extra for the LE of the release Destiny, and I got hundreds of hours and no urge to play almost any other game for almost a year, and every expansion the progress was basically a reset along the way because new enemies and new guns were so much stronger (and some cool mechanics).
Now, what will make me want to play Destiny 2, is role playing and community (playing with friends). The story in the game so far has been "loose," at its most cohesive in the Taken King expansion. If the second game can have TK-level story or better, and a large bump in fresh content and graphics, then I'm going to push my community (my friends) to get the game because the first was such a solid chill out together activity.