I mentioned this before and I'm surprised to see that Xur is potentially really close to what I had in mind, but it still pains me to see that only previously relevant weapons from before the Power changes are the only things dropping from him. I don't see the harm in adding Forsaken legendary weapons to him because you're going to see those old weapons running around here and there for now on anyways and I doubt that they're that broken with all of the power creep we've had over the years. Re-adding them will fight back that FOMO. Like I said in a different topic, it can be a "just for now" type of thing and you can update them with new sources later. Why not use what's already in the game?