The engine may still need to be stripped down to check that the bearings have not been damaged. If the load is high enough the balls in the bearings (or rollers) can cause small dents in the inner or outer race with will lead to bearing failure. There is no access to the bearings by borescope.
I wonder if they have G-load strip measurements on the carrier to decide if a stripdown is necessary? Seems awful expensive not to know if it's needed.