Like mentioned in the video, the plane didn't fell out of the air, it was like a controlled descent over 8 minutes with no contact to the pilots, no mayday call, no expression of any kind of problems.
There are technologies out there we are completely unaware of. You can control an airplane from the ground with an app on your moblile phone these days.
They also went passed an airport while on the descent, either the plane wasn't able to be steered in much capacity by the pilots, or the cabin rapidly decompressed and everyone passed out/died, but that doesn't explain the apparent controlled descent.
Yeah I'm aware they can now control planes from the ground, a hacker went in to detail a while back at one of those hacker conferences, the military also acknowledged it was possible, but it appears to have been swept under the rug.