I'm no expert but train from time to time.
Was I the only one who though Vitor didn't fully extend his hips? All the replays I've seen Dont look like he fully extended?
Thoughts on the technique in general? I know he couldn't go belly down because of the cage... 
Pay attention to his legs they are kinda loose not completely tight how they would be if he arched his back and really put his hips into it all the way... I think he really could have snapped bines arm but he hesitated
Bones
The way Jones arm was passing infront of his own chest (as opposed to extended to the side) makes the pressure a little different. I actually love this style armbar.
Traditional armbar to the sides you squeeze the knees together to create the trap. Arm acrossed the chest you dig your heels and calf muscles into their neck and back and clamp down, causing the arm to be pinned between your hips and their chest. With this kind of armbar there isnt room for the hips to over extend.
The Gracie breakdown (posted in another thread) also pointed out that jones was stacking Vitor, which had vitor on his neck. It's harder to fully extend your hips with that sort of pressure on your neck.
Also jones at one point had him off the ground and managed to clear his elbow relieving the pressure.
Gracies pointed out vitor could have adjusted the armbar stack by spinning out for a belly down transfer, similar to how vinnie magahaes finished his armbar.
Vitor also heard and felt the popping of Jones' elbow, so he might have released some of the pressure thinking the arm broke or jones would tap.
So there were probably a few factors playing into it. Bad angle, getting stacked, being nice and not cranking the sub, and not adjusting the attack to the defense. 
I just wish he would have been able to go belly down
i almost pissed my pants...emotionally that moment took me all the way back to GSP vs Serra.
He got it on quick. That's a fact.
Anyone who has been around the game thought the fight was over mid way through that bar. It was slipping a little but I was certain Jones was about to tap or about to hit the mat as it broke. I honestly thought Vitor pulled it off.
ranier wolfcastle -
Thanks Ranier
At 8:43 of that video someone blows a fart.
Jsteven - I just wish he would have been able to go belly down
I know very unfortunate it would have def been game over.
Kumite4 - Anyone who has been around the game thought the fight was over mid way through that bar. It was slipping a little but I was certain Jones was about to tap or about to hit the mat as it broke. I honestly thought Vitor pulled it off.
I know it was so close. I think if Vitor was put in that exact position again and knew Jones would not tap easily sect. He would finish it. I think its in part due to Jones not giving up and Vitor slightly relaxing and then all the other circumstances y'all mentioned that made it hard for him to finish.
thepriest555 - The Gracie breakdown (posted in another thread) also pointed out that jones was stacking Vitor, which had vitor on his neck. It's harder to fully extend your hips with that sort of pressure on your neck.
Also jones at one point had him off the ground and managed to clear his elbow relieving the pressure.
Gracies pointed out vitor could have adjusted the armbar stack by spinning out for a belly down transfer, similar to how vinnie magahaes finished his armbar.
Vitor also heard and felt the popping of Jones' elbow, so he might have released some of the pressure thinking the arm broke or jones would tap.
So there were probably a few factors playing into it. Bad angle, getting stacked, being nice and not cranking the sub, and not adjusting the attack to the defense.
Good post
sacredhate - i almost pissed my pants...emotionally that moment took me all the way back to GSP vs Serra.
I've been a fan for about 3 years. I have never experienced a moment like that before.
KaBrooney -sacredhate - i almost pissed my pants...emotionally that moment took me all the way back to GSP vs Serra.I've been a fan for about 3 years. I have never experienced a moment like that before.
I was screaming with my hands on my head. Last time I did that was Pettis vs Bendo lol