I think its probably close but after watching both videos I noticed a few small things about SE's routine. The first stunt J's stunt seemed a bit off when they waterfall out of their stunt, they still aren't throwing standing fulls and in the pyramid there were some timing issues (especially on of J's side when she does the first release- she went late) and only half of their stunt groups are doing double ups compared to WCSS full team double ups. My guess is that some of these combined to impact the scores. Now I will say that SE worked the heck out of their dance like I have never seen them do before.
But to be honest, as much as I appreciate Cheer Updates, I find they tend to have teal shade glasses on.