I feel like comparing dark energy and dark matter is really disingenuous. Dark energy is a placeholder to explain a really bizarre phenomenon (which is now being questioned). Dark matter is something we can map the distribution of throughout the visible universe via it's gravitational effects. We even have plausible hypotheses for what kind of stuff it might be (WIMPs etc.)
And as soon as we know what it is and the phenomena responsible the naming will change. Especially when we find out its not actually "dark" and is instead x, y or z under a, b, c conditions.
