Why is the empennage design of this Lockheed 1049E so complicated? Photo.

What is the reason for making the empennage of this Lockheed L-1049E Super Constellation's design look so complicated with two vertical horizontal stabilizers? In my understanding, the more components installed, the more the weight of the airplane will be, and as a result will put more load on the engines, especially if there will be more actuators required. Do all the horizontal stabilizers have controllable surfaces? What is the reason for making the horizontal and the vertical cross each other, and not attaching them at their tips (marked with yellow and green circle)?

Edit: I corrected the question on the body from with two additional horizontal stabilizers? to become with two additional vertical stabilizers? as supposed to be as I marked in the picture.
Complicated is a matter of opinion and I wont address that specifically since its somewhat subjective. But the core of the question is "why did the L-1049E have 3 tails" which is a legitimate question for this site. 

The design was to allow the aircraft to fit in hangars of the time 


  A sleek fuselage, something like an elongated fish with smooth curves,
  featuring a circular cross-section, a snub nose, and a triple-fin
  tail. Triple tailfins were selected because a single tailfin would
  have been too tall to fit into typical hangars.


The L-1049E had tricycle style gear that was quite tall (for the time) and a standard single tail would have made the aircraft too large to fit into the hangars that most fields had. 

The above link also discusses that for a particular Military version ("WV-1") of the aircraft the lower section of the tails were extended to compensate for a radome being mounted on the top. This came along only a year into the design and the subsequent builds may have been a hold over. 

Weight as a result of the added rudders would not have been as much as you may expect since they were traditional fabric covered style surfaces