There hasn't been any indication yet that the IO, LtCol Paul Ware, took Mendoza's testimony seriously. The recommendation in the LCpl Sharratt hearing took three weeks from the close of the hearing. We may not know until mid-August just what LtCol Ware thinks about all this. He did not go easy on NCIS and the prosecution in the Sharratt case and doubt he will here either.
BTW, for people trying to follow what happened in the LCpl Tatum case, here's a handy diagram...