Autumn Olive as well as Multi flora rose was one of the things pushed by the Dept of Ag and the Dept of forestry and the PGC as habitat as food for wildlife and fence row plantings for farms. By the time they were declared a full blown problem and noxious weed because of the spreading uncontrollably by the same people who were pushing the planting of them for wildlife habitat they were out of control, being spread by birds and other species that ate the berries and rose hips. The down side is they created a problem because of the indiscriminate spreading and the difficulty of controlling the propagation of the plants they were pretty much out of control. The bottom line is, whether the shrubs are good or bad depends on what you want to do with your land.
When you are up to your butt in alligators, it is hard to remember your intent was to drain the swamp. Stay focused!