Is it just me or the "seamless transition" in this much acclaimed, dissected and discussed shot is actually very un-natural movement of hands and legs by the ac

Is it just me or the "seamless transition" in this much acclaimed, dissected and discussed shot is actually very un-natural movement of hands and legs by the actor -- and not "seamless" in that sense. I guess it must have been a result of conscious body movements by the actor or a many-retake attempt to get to a particular "target" pose at a particular point in the run to make the "seamless" transition of shots possible in post. Feels unnatural and forced to me -- and distracts from what could have been a minor mind bending effect as we watch the movie.