In my opinion, all-in jacks and kings is the right thing to do. I think I was just unlucky in the tournament. I'm not a pro but on the other hand, folding these couples on bubble is also right. It all depends on your propensity to resist the temptation to invade kings. If you dropped the jacks, the kings should have passed too, he would still win you with any cards in hand, because the great RNG was on his side.