Never mind, I had to read the scenario a few times to under stand that. They still could have made it further than you, but was cut short. That is odd.
I read your pre-edit thoughts and they made sense. I hadn't seen it go exactly like this pre-1.4, where whoever got the farthest won, not whoever got through some earlier point fastest wins.
I'm sure it makes sense with some time mechanic consideration, but as of now I don't get it. What I saw last night is that our team should have won, as the other team was behind us in progress when they were awarded the win and there was still time on the clock.