Coding? You mean the additional health they keep adding after each DLC? Every boss in the game is just a stationary bullet sponge with a crit spot. Maybe if they had some creativity and designed those strikes so that some bosses required challenges instead of just more shots instead then the Hammer wouldn't be unfairly nerfed like this. Or perhaps the fact that TTK just is more of the same content they had to do it in order to increase estimated playtime.