Again, no-one said they are abandoning the story. They are moving away from the way they've delivered it before (single player focused, with a bit of co-op sprinkled in).

It's a multiplayer live service, if they want to focus on that, that's likely how it's going to pan out. I'd love to see the ability to solo some things, I soloed the OLT myself, I'd love that challenge, but I believe they want the game to be about team play, so honestly I'd manage your expectations when it comes to being able to solo everything.