I think the you tube guy didn' film the relevant slabbed bit. There are only two formal routes from the standards..red and blue and the slabs are at the point where they diverge.
I do hope they don' slab any more. Certainly the rest of the red route doesnt seem too badly eroded and because the peat bog elements of the c2c are much smaller than the pw; even the slabs laid look quite intrusive.
Looking at the funding aspects of the project, I think that will be it. Nine standards is certainly not blenkinsopp common