He says everything in the control room was pretty routine, no misdeeds, no risky experiments, no drama, no questioning of orders, no worries as unpredictable behavior of the reactor happens, the reactor was just poorly designed. After the explosion he was confused and didn't know what happened and what to do. At some point after looking around, etc. he figured out that he needs to take measures to prevent new fires on the exploded reactor building. While they were busy taking measures they got sick, started vomiting. Eventually he got taken by the ambulance to the clinic. In the clinic he was questioned, eventually got arrested. Complains about USSR, that soviets wanted to blame the disaster on the reactor personal and that the judge only did what the politburo ordered.
Thank you. So it seems in assigning the blame between the personnel and the officials responsible for design, both parties were blaming the other party. I read somewhere that Legasov criticized the steps done in the control room and also the design and lack of oversight in designing/building the reactor. So the truth is probably somewhere in between and the blame is shared between the personnel and the officials/system.
