It's only efficient if you have segregation of high speed and local services over the whole length. On the basis of the commitments given in the report it looks like high speed and local services will be sharing tracks between "somewhere east of Standedge" and Huddersfield, and between Ravensthorpe and Leeds. This massively reduces the efficiency of the line, and means the newly built expensive section from Manchester to " east of Standedge" cannot be used to its full potential. So the opposite of efficient I'm sorry to say.
"Full potential" is going to be governed by many factors. For example, there is little point (say) having a dedicated NPR line right into Leeds Station if then you don't have enough platforms there.
My hunch is that (taking Leeds-Manchester as an example)
-The scope of TRU, as stated (essentially 4-tracking Huddersfield to Dewsbury, plus grade separation of the area, plus full electrification) buys 8 Fast paths per hour between Leeds and Manchester, plus some journey time reductions
-Then NPR plugs into this, takes those 8 Fast Paths and significantly accelerates them between Huddersfield and Manchester
-That probably starts to "max out" a number of other places, such as the number of practical paths for NPR services on HS2 through Manchester Airport, or the practical platform capacity of Leeds (for example), so expanding the scope even further, whilst theoretically segregating Fast and Slow services even more, doesn't actually yield any further benefit in terms of achievable trains per hour
NPR and TRU combined pretty much give a dedicated pair of "non-stop" tracks all the way from Manchester Piccadilly to Dewsbury.