I guess you could consider his "ranch" his home office. A great leader does not lead from his "ranch".
BS, in this day he can lead from where ever he is located. There is nothing he can do in Washington(well not much anyway)that he can't do from Crawford. He has phones, computers and, I bet, a situation room at this ranch. He deserves time off as much as anyone but he never actually gets it(time off).
He can run the country just as well from his ranch as he could from the White House. Everything he needs to do his job is replicated on his ranch and he is only a few hours away from the White House if he needs to return. Although perception in the public eye might get the knickers of MSM all in a bunch.
Many modern Presidents have managed various world conflicts from their “retreats”. Roosevelt, Truman, Nixon, Reagan and, yes, even Clinton.
Location does not a White House make … ability to communicate does.