Season 4 of Skins ended too soon, and it shows.
Seasons 1-3 each have 10 episodes. Season 4 has 8. It did not delve into the characters lives as seamlessly as season 2 advanced the first generation's storylines. While every show must grow and evolve, I personally see that season 4 stops short. Most of us sitting in the audience can barely accept the 10 we are given. This last episode comes as a huge let down. A rushed ending, and two episodes never to be created... While I understand that many of the characters are self absorbed as teens go to try and accept that no one was doing much about Freddie's disappearance made the ending less believable than some of the crazy things our Skins characters have done in the past.
The second season of skins did a great job of developing the first generation's storylines, and dealt with a tragedy that unified their group, even though they were all on the verge of going off to Universities away from each other. Season 4 did just another party that felt too open ended to be the end of the series!
User KanaKatasrophe put up a very good point. Sid and Cassie's excursion to the States at the end of series 2 created a cliffhanger. However it gave the feel of the last chapter of a book. The characters live on, sometimes going in the same patterns of behavior their whole lives through. This is what conclusions are for, but a rushed confession of feelings from Naomi, and a gone-nowhere-but-took-time-doing-it Effy does not equal conclusion. In my opinion the only thing that was in true Skins fashion was the happy coincidence between Panda and Thomas, and Cook beating someone up.
I conclude with this: It seemed a disservice to us faithful watchers who gave the second generation all the attention and care we gave to the first. We as an audience have to accept with every ending that we will not know what comes next, but the two episode short ending leaves me feeling a bit lost, and it seems we have lost Freddie without so much as a true explanation. Chris's death was better written and grieved. While my mind demands answers, I know nothing will come of my disillusionment.