> The non-ballistic nature of their maneuvers during atmospheric reentry makes their trajectory unpredictable.

Please help me understand why an unpredictable payload carrier is a desirable thing.

Predictable for the sender, non-predictable for the recipient.

A ballistic missile's predictable path can be intercepted. If the missile can change course, it's much harder to intercept.

> Predictable for the sender, non-predictable for the recipient.

Aha. The article didn't (to my eyes) make that distinction clear. That changes things, of course.