Battlestar Galactica Finale

[Cinjin]

Alright, sorry about the severe necropost, but this is exactly the title I was going to name a thread and considering that there is only one solitary post in this thread, I didn't feel it would be too terribly offensive.

Netflix has some use ...
I spent the last few weeks watching the entire series of Battlestar Galactica. No, I had never seen even one episode prior to a few weeks ago, and yes, I realize that some of you scifi nerds may now qualify me as a loser.

First, a few points before I get to my primary question ...

James Callis was awesome throughout the series. I loved every moment he was on-screen. What can I say? Gaius Baltar was definitely my favorite character.
The first and second seasons were awesome all-round. The 3rd was so-so and the 4th was too slow.
However, the two part finale was perfectly acceptable in my opinion. I found it to be satisfactory with exception to one thing....


What the FUCK was Starbuck?!?


Kara Thrace was blown out of the sky ... no explanation of where she went.
Kara Thrace was missing for 2 months that she thought was 6 hours ... no explanation.
Kara Thrace finds her own body and even has it DNA tested by Baltar ... no explanation.
Kara Thrace is given a brand new ship with a "magical" homing device ... no explanation.
Kara Thrace's father taught here musical notes as a child that saved Galactica ... no explanation of who her father was or the significance of musical notes. Furthermore, why did the final 5 Cylons hear the exact same music??? Did her musician father teach the Cylons the notes between recording albums?????
Kara Thrace didn't know shit throughout season 4 until suddenly at the end she somehow knew that she was just leaving and her job was done. No explanation.
Kara Thrace disappeared into thin air ... you guessed it, no explanation.


So my question is:

Who or what the FUCK was Kara Thrace?!?


(that was my only real complaint with the series.)