Aniroodh Sivaraman, 

Jada means dumb. As a samadhi or transcendence state, it is stupor trance, a condition in which one is stunned while the physical and/or subtle body immobilized. It is a condition. As for the disadvantages, consider first the disadvantages for a normal loop from a dying physical body to waking up with no idea of one’s past as an embryo.

How would the disadvantages be described in that sequence of events.