While I don't see indications that upstream wouldn't be maintaining and developing pitivi, which seems like a wrong claim, Ubuntu 14.10 does have currently the bug #1377804 that prevents pitivi from starting.
On the 14.04 LTS the pitivi bug #1307746 that affects some of the users seems resolvable. Hopefully the 14.10 problem could also be fixed, but it is different and maybe related to the latest Python or GStreamer changes in 14.10. Meanwhile openshot on 14.10 at least starts up, although requires libav/ffmpeg.
While I don't see indications that upstream wouldn't be maintaining and developing pitivi, which seems like a wrong claim, Ubuntu 14.10 does have currently the bug #1377804 that prevents pitivi from starting.
On the 14.04 LTS the pitivi bug #1307746 that affects some of the users seems resolvable. Hopefully the 14.10 problem could also be fixed, but it is different and maybe related to the latest Python or GStreamer changes in 14.10. Meanwhile openshot on 14.10 at least starts up, although requires libav/ffmpeg.