Savannah and Hawk made their report first while waiting for the DNA analysis of the bones that Valkyrie and Brown found. Their mission was considered half done and one more mission to go before Hawk can finally make his proposal. Savannah didn't know anything about.
They already made plans that they will be staying with Jillyanna and Travis during Christmas. Then they will go back to the Knight's family during New Year. Same goes for Brown and Valkyrie, as long the mission was a success, they would go back to spend Christmas with Jill and RV then, spend New Year with Dr. Anderson.
Calhoun didn't tell them anything yet. He wanted them to focus on their mission specially that their lives where in the line. He can't afford to give them distractions. Two days later, they received the documents containing the result of the DNA. Brown brought the documents to Calhoun and showed it to him.