It's not really the same.
I'll grant that it's not a logical impossibility that JJ pulls this out of the fire with the third movie, but we all know he's duct taping the shit out of the swiss cheese boat that Rian left him with.
It's like if you order beef wellington at a restaurant, and after half an hour they presented it to you raw with the dough still raw, plus they dropped it on the floor on the way to your table and on the way back to the kitchen to try to fix it, and then it fell into the garbage can by accident before they freak out and give it to a new chef to try to make it taste decent for you over the next 45 minutes...
Can he pull it off? Well, it's possible. But don't pretend that a bunch of raw meat and dough in a garbage can was a good result after an hour of waiting for your meal.