The term hypersonic missile is understood to be a missile that travels at hypersonic speeds and is also maneuverable at the same time, not a simple direct ballistic path like a ballistic missile. Maybe they should come up with a new term such as ‘evasive hypersonic.’
I think this new missile slows down when it is time to maneuver and get on final target trajectory. Nothing can “maneuver” while still in the atmosphere at hyper-sonic speed. Above the atmosphere it can maneuver but not at lower altitudes.