Sure, mine was a general statement, and there are exceptions. I've heard in the past that the apparent dynamics of large elliptical galaxies don't seem to require as much dark matter as, for example, spirals. However, large ellipticals are formed by mergers, and mergers are going to perturb existing near-circular orbits into more elongated orbits. Objects in elongated orbits are going slower than their average speed when they're far from the center of the galaxy. Dekel, et al. simulated the situation and found that these elongated orbits, with their slower outer trajectories, only make it look like there's less dark matter than we would expect:
Originally Posted by TooMany
Using numerical simulations of disk-galaxy mergers, we find that the stellar orbits in the outer regions of the resulting ellipticals are very elongated. These stars were torn by tidal forces from their original galaxies during the first close passage and put on outgoing trajectories. The elongated orbits, combined with the steeply falling density profile of the observed tracers, explain the observed low velocities even in the presence of large amounts of dark matter.
As I've always said, a single paper does not firmly establish a proposition. But this one makes sense to me.