Just thought I’d point out that, technically, the Alexa doesn’t have less green sensitivity, but (if the chart is taken at face value) more blue sensitivity. Green is still normalized to 1.0. That said, based on the charachteristic response of silicon sensors and how similar the shape of the blue channel is to nikon/sony, I’d be willing to be that the blue response reflects additional gain added to the blue channel in A/D conversion based on the white balance selected in camera.