Yetos, I'm going to give this one more try with you. A lot of the details will be missing, but this is just very broad parameters.
Y Dna doesn't have a nationality attached to it, nor a language, or, let's say, those associations can change with time. E-V13 is NOT an Albanian marker. It is a marker for a group of farmers who, we now know, were present in the Balkans at the LATEST 7,000 years ago. (If Maciamo is right, its father E-M78 might have been in Greece or the Balkans since the Mesolithic thousands of years earlier.)
It's irrelevant what language they spoke.
Everyone in the Balkans today, no matter whether they are Albanian or Serbian or Greek or Bulgarian is partly descended from those people. Now, there were other yDna lineages present before them, and others after them, like R1b and R1a, for example. All these people mixed, but some lineages are higher in certain groups than in others, maybe just because of founder effect.
So, no one group OWNS E-V13. It was a farmer haplogroup in Greece and the Balkans. That's it. Serbians who carry E-V13, and Greeks who carry E-V13, and anyone else in the Balkans who carries E-13 can claim descent from those people. In fact, even Greeks and Serbs and others who don't carry E-V13 are descended from them. Let's take as an example a Greek who carries yDna J2a. What was his mother's father's y line? Could it have been E-V13? What about all the y lines on that whole side of his family. Or, what about the y line of the father's mother's father? Do you see? Their y chromosome didn't get passed on, but their autosomal dna did get passed on to some degree.
Now, as to TMRCA. Let's imagine that a man lives in the Balkans 5000 BC or 7,000 years ago. Let's assume he carried "original" E-V13. He had, to just pick a number, 8 sons. In the first generation, they all had sons. In the next generation, one son's line "daughtered out". Then more line's "daughtered out" just by chance in succeeding generations. The y lines that survived had accumulated some additional mutations. What we wind up with is a situation where all the E-V13 that's in the Balkans today descends from the one line that survived to 4400 years ago. That line is still descended from the 7,000 year old line. New people didn't suddenly parachute in. The line remaining is still descended from the prior group.
Mathbionerd usually explains things pretty clearly. Give his site a try...
http://mathbionerd.blogspot.com/2013/08/y-and-mtdna-are-not-adam-and-eve-part-2.html