BST has been forced to solo by design and by community exile from day one. The fact we can solo is not the key issue, because the entire game is being pushed forward a solo centric attitude and design so, of course BST is going to expand as people are forced to solo as the servers shrink and individuals game time also shrinks.
Now that said, I'll admit a damage adjustment was and is needed for several jobs but the Nerf BST received was unnecessary and is inconsistent and should be undone with the damage adjustment put in its place.
The game is winding down. Lets not make overreaching changes to any functionality of a job at this stage.
Community reps, please respond, is the dev team looking at this problem?