The Display of Surface 2 and Pro 2 VS Davids review

This might be nitpicking. But last year, the surface pro's screen was universaly creditet as riviling the ipad for the best screen due to better vieing angels and better colors - the retina beating it only in text.

David reviewd the surface pro of 2012 and gave the display a 10 out of 10.

So this year, they took the same display, improved the color accurasy With almost 50% and put it on both the surface 2 and the surface pro 2. - which David rated the display at a 9 out of 10..... Did I miss something? does improvment mean it looses a point? or did someone get a better screen then the Ipad 4 which was the standert when the Pro (2012) review went up? - raising the standert?