Yeah, I'm not disputing that.
There are a lot of factors that go into overall performance and also into overall perception of performance (i.e. snappy video). Dual core alone or raising memory from 768M to 1000M alone will not normally see a lot of improvement. Not even close to what you might expect from the mathmatical difference (i.e. ~30 percent more RAM and 100 percent more "cores", in this case).
But if you combine it with other factors, like possibly an improved graphics processor unit and less software overhead (like no Sense), you'll probably note improvements in overall performance. Or perceptions of performance. Either way it still counts.
There comes a point, IMHO, where benchmak scores and other "specs" just don't matter to me. Not as long as I am happy with my current performance. It's a little like producing digital sound up into the 30khz range, when the human ear is usually limited to 20khz. Mine are much worse
-Frank