What if the pilot had used intersection data, taken full length, and at the time of the final power application was still at or before the intersection that the takeoff perf had been calculated from?
You are still changing your net take off flight path as you will be rotating earlier than you would have been.
So obstacles that are closer might now be in the net take off flight path that were not there if you had used the full length take off data.
I am no performance expert but I know enough to know that you should use the appropriate take off performance for the intersection that you are going to take off from.