""The Holley cam charts seem to make the orange cam look slightly lazier than the green one.""

If you look at the attached Holley chart, reference the throttle percentages between the GREEN and the ORANGE. The green has a shorter duration which is completely used up by 50% throttle. It does have more cc's but only at 40-50% throttle. The ORANGE actually provides more cc's from 10% up to 40% and the ORANGE has a longer duration up to 70% throttle.