@FitzTheRuke hope you don't mind me summoning you...as someone owning and operating a FLGS, do you have any opinion on how this sort of tracking historically correlates with your local experience?
I'm happy to be called, though I'm not sure that I have much insight here. I don't quite understand how this chart is compiled and what factors it considers. For my store, we've kickstarted a few things (A5e, Daggerheart, Draw Steel, Shadowdark, Shadow of the Weird Wizard, Nimble, and a few others I'm not remembering) but we are often limited by two factors: Our main distributor (Universal) doesn't carry (nearly) anything from KS, and shipping across the Canada/US border usually eats up any sort of profit that we are likely to make on KS stuff. So it's more a labor of love than a business decision, and we're often not able to replace anything once we sell out of our original KS-delivered books.
Because of that, there are a number of items on that list that I simply have never had, much to my dismay. So I don't know how they'd fare in my store, if I could get them.
All that said, I find the list a little bit surprising. (For example, Starfinder beating Pathfinder - to me, SF is a distant cousin of PF) but Daggerheart has definitely outsold PF2 at my store.
So... I guess what I think of the list is this: It's interesting, though not particularly exciting. The best thing about it is that I will have a look and see if I can get any of the ones that I've never before looked into, which is probably its main point for existing.