How bad was the leak? I'm not disagreeing, just trying to get the whole story, is all.
Although I do agree that re-vegging is the best decison if it's an option, I do have a suggestion if you are going to keep it in bloom....it would probably help them mature faster(go into full bloom, if it's still possible at this point. That's iffy.) It might also be worth a shot to leave them in 1-3 days of complete darkness, because that'll help trick them into thinking their going to be dying soon, and will help force flowering. It can't hurt, at this point. Agreed?
Also, I'm guessing that they aren't getting enough direct light while they are out on the balcony, which would be another reason for those underdeveloped buds. I also noticed some branches or leaves cut off at the top of the plant. What was that for? If you cut too many leaves from the top of a plant, that can cause those 'airy' buds too.(Believe me, I got carried away cutting fan leaves once.LOL) Anyway, it's probably caused by a light leak, because it sure does look like those buds started re-vegging. That means you had one hell of a leak. How bad was it?