EAs need to downplay climate change because otherwise it becomes really hard to explain why preventing it isn't the main focus of the organisation, since it should break their utilitarian calculus just as much as imaginary future robots with a hard on for paperclips do, with the additional problem that it would make their relationship with capital providers far more adversarial.
Plus they probably think that if they oppose industrial build out even indirectly it will piss off the basilisk.