I'm not holding my breath for a Switch win in November. It isn't impossible, but going by demand for the 199 PS4, this is Sony's month to lose. So if they come in second, it's all just down to stock.
As for the tool, right now the Switch and tracking sounds on point, Xbone probably slightly overtracked, but the PS4 tracking is way off. I don't think this will be easily addressed either. Last month was an issue of too much of the preorder impact being applied to that one day of tracking for the Smash bundle. This is a bit more of an issue as it seems mainly tied to the fact the Spidey bundle shot to the top and promptly went out of stock. So it didn't have time to gain points for PS4 and the tool can't distinguish between a system narrowly making #1 and an item selling 10x what #2 is.