I agree with Andy you would have thought that a bit of planning for the return of two tracks between Pershore and Worcester could have been posible.
I agree to a certain extent as well, though I think it's fair to point out that the section of track in question is quite awkward in that it is on a slightly elevated section with fairly difficult access, so if that track had been moved I would have thought some embankment strengthening would also have been needed. Also, for the majority of the mile of track that was replaced the original track was slewed to one side with room for a second track, in other areas there is a small amount of lineside equipment that would have needed moving - nothing too major but it would have added to the cost. The section that would need moving is around the point where it crosses the B4084.
It will appear a little short-sighted should Norton to Evesham redoubling suddenly jump up the
NR» pecking order, but, if I suspect, it'll be at least ten years before it happens then perhaps it's understandable, if a little regrettable.