LEA research lab rant

The final fight of this dungeon has some of the cheapest mechanics i've ever seen in a boss fight. why can a disciple target when with the laser when i'm already downed and just laser me out of existence, even while i'm using the adrenaline shot? why am i taking damage that cant be dodged, and is'nt telegraphed. why is the AOE of the mortar shots twice the size as what i can see on the ground. why can the disciple just clip into the pillar where i cant shoot its head for weakspot damage? why am i required to spawn an electric tree to progress the last phase of the fight but there are no electric spore clusters for me to spawn it from. was this boss fight playtested *at all*? why does the fight always load me in with 1 adrenaline shot on the first try then fill up my shots on the second try? this fight is so frustrating, especially with the difficulty jump between phase one and phase two.