Thunderlord is a better gun overall than Ghorn. The only thing that needs to be done is making sure 3x Ghorn cant bypass the trials of PoE 34 and 35 by just burning the boss. That is unfair to the general player base and beyond what the content developers envisioned I am sure. The boss fights should be like the raid battles where Ghorn helps but you still have to go through the steps to complete the boss fights.