
Don't want to get flamed here, but wasn't one of the reasons the new(er) FP+ system was introduced was for Disney to better manage crowds at various parks so that it could better plan appropriate staff levels? Now I know many have argued that this has not necessarily happened to the extent that Disney probably envisioned, but even with the introduction of tiering, Disney has impacted attendance patterns for various attractions in various parks relative to historical patterns.
I know when FP+ was first rolled out, I thought to myself that this would drastically impact the accuracy of crowd calendars. Crowd calendars in and of themselves have historically greatly influenced traffic at the various parks as knowledge of their existence has grown through the years. Whether one believes Disney was successful in their attempt to rebalance park attendance through the new way FP+ operates or not, by simply introducing new ways that people can access attractions(again, tiering is a good example), I believe this has at least somewhat influenced crowds, and therefore, the accuracy of crowd calendars have been impacted. This is because they all to some extent are based on historical behaviour. After a few years of the new patterns being in place, I believe crowd calendars will again be more accurate because consistent trends will start popping out, but right now, there isn't really enough history yet for those who predict crowds to consistently (and accurately - or at least as accurately as they once were) base their current recommendations. Does that make sense?