It is most likely a very reasonable assumption. This paper is a test of reasoning ability according to the press release.
A great deal (but by no means all) of the VR fits better into literacy than it does into reasoning so as penguin says the reasoning may be mostly (or possibly all) NVR. I certainly wouldn't want to take it as read that it will be 50/50 NVR/VR.
VR is also the paper that is often criticised for being most coachable (some of the coding questions are all about good technique imho) so we may see much of it vanish in favour of NVR which is less coachable and has less cultural bias. In fact given the political noise about tutoring I wouldn't be surprised to see it vanish altogether from the Kent test leaving NVR comprehension and numeracy.
Whatever happens the quote is clearly an assumption on his part, I guess only time will tell how accurate an assumption it was.