I will disagree on that point. Mark had a difficult time with the sequence of dance moves. He was making mistakes on moving his body in the correct direction. I did not think he got a mercy pass on his 12th attempt. I thought he earned it. I doubt that it will matter at this point, as my thoughts on the imminent elimination of Mark and Bopper are posted in another thread (#1040 in spoilers).
I am not sure about this. You clearly see that he could not follow as perfect as the other racers even in his 12th attempt, besides, it feels so strange that after 11 failed attempt, he stopped and wanted to quit but people begged him to try once more, and then he passed it! This is unbelievable, the task is difficult because you would not know what part you did wrongly, they just disapproved without explaining why, so all racers were frustrated.
Maybe they were very far behind, but you just do not know if there is an HoO next leg or other teams would get very lost. In any case if they don't get eliminated next leg, I would be disappointed by TAR producers of this judgement error. Don't get me wrong, I really like Mark/Bopper, but I also want the race to be fair.