I'm not sure where I heard it but this stuck with me, NP said a couple of times in one PR that the NEWS numbers were very good at 3-7 &14 days. So you may be right that it is SS at one of the time frames but not the others.
It could also be the 7day time frame, a lot more patients breathing better and people going home earlier. We know 64% had fewer SAEs meaning they would be counted as better overall numbers.