I'm not a fan of the use of the word "ground or grounding" applied to a maintenance/inspection program. I prefer to use that wording only where a regulatory certificate has been revoked.
What I interpret here is that a manufacturer (GE/Boeing) inspection program has been decided to detect and remove a suspect part from the fleet. Until such time as this is completed, they don't intend to accept an increase in risk nor to transfer the problem to a their customers.
This problem will likely be resolved soonest rather than later as long as the estimated number of inspections or negative results do not increase.
no news is good news