Half marathon training plan from coach Jeff

Hoi,

i am following this training plan. I noticed it Lets me run very long distances. Past week 24 and 27 km. Now I have to run 30km in the long run upcoming sunday.

feels like I am training for the wrong distance: a marathon instead half a marathon. 

I cannot see the whole plan, so is this normal for jeff’s plan for the half marathon and can I expect the distances to become smaller again? Or is this a bug?