Yeah it used to be a raid the fix was justifiable but it got so bad there's regenerating minotaurs, portal glitches, and more. Crota cheese was fixed but the result was crota running after you across the whole damn arena or his shields randomly being invincible forcing a wipe, and some other bugs I heard of. I recently got the vex after dealing with god damn atheon and now it's probably nerfed to the ground thanks to crucible. Bungie just had to done and fûck it up again thanks to nerf screw balls.