The level of excitement Tony felt about Kate being put in charge of Gibbs’ protection detail, was the same level of excitement the Auror in MACUSA felt at being told Ari slipped away from his Mossad watcher and reentered the US. While he appreciated the level of detail Kate was planning for watching over Gibbs’ house, Tony knew the man would hate it. Not only that, but probably insist on staying in the office all night going over case research.