Everything looked...good enough to eat!
I'm going to guess you had the bones down and they punctured the foil...I hate when that happens. I foil them meat down.
I tried putting a few in a pan and foiling the top before, but with different size ribs some cook longer than others.
I still use a pan for the scraps/trimmings from spare's. I smoke them to color before panning. The smaller pieces are "tasters"...
I'll leave them in until 200-205F. I also allow them to rest a bit before pulling the meat off. Once it cools it gets vacuum bagged and goes to the freezer for the next batch of chili.