So, are you saying that the car in question, that slid up the track, was going the exact same speed as you prior to the slide? Do you know, through the data that you have collected, that it should have slowed to a speed that would have allowed you to gain the amount of time you were hoping to gain?
Likely not.
You are merely assuming that you should have passed that personal solely because of the mistake, regardless of what the physics dictated the impact of his speed should have been.
If we are going to be assuming, it's safe to assume that since he was ahead, he must have been travelling faster than you, because that's the only way to be ahead, correct? If that was the case, his slide would have to have dropped his speed to less than your speed in order for you to catch him up. Since you don't know how much speed he had to start with, you don't know how much he lost. You are simply speculating. Once the mistake was over, his acceleration to top speed resumes and he once again may be travelling faster than you.
Basically, without the data, it's all a bunch of shoulda, woulda, coulda
Here (at 1:26), Daniel Riccardo passes Adrian Sutil at 130R, goes off onto grass and dirt, and comes back on track...loses nothing. Was physics in the real world messed up at that time, or is it simply an unexpected outcome?