EDIT: (I realize I did not specifically answer your question...but I would NOT use TP to schedule my park days based on what I've read...I would consider reading some of EasyWDW's posts on "which day is best" at each park though

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People are welcome to formulate their own opinions...I side with Josh as he presents some good logic. I don't want to get into an argument here over crowd calendars so if anybody here disagrees with Josh (and thus me), I am not offended. Here's some examples for those interested:
This post from March 2019 has some commentary on their issues and some updates they did on about a week's notice in January:
https://www.easywdw.com/easy/blog/walt-disney-world-early-2019-crowd-and-wait-time-trends/
A few of my favorite excerpts from that post: Imagine being four days away from your vacation, expecting to enjoy one of the ten or twelve least crowded days of the year, only to find out that your visit now falls on one of the busiest days of the year. And paying $15 for the privilege.....The 56-minute wait that we saw on the equivalent date in 2018 is clearly above average. It’s higher than the average for any month. Despite that, TouringPlans is still predicting a crowd level well below average. At least until six days before the date when they let you know that crowds are going to be much heavier than originally predicted....If you follow touringplans.com, then you’d know that they make a new excuse for why their crowd calendar is so bad every three or four months. Sometimes it’s ride capacity. Sometimes it’s weather. This time around, it’s not that their numbers are bad: It’s that the Park’s numbers are bad According to TouringPlans, Animal Kingdom’s posted wait times are off by an unprecedented amount. Keep in mind that they’re virtually the same as last year.
And there's a lot more great commentary that sort of pokes holes in how they analyze things.
Here's a post from April 2019 where he briefly discussed how they completely missed the best week of spring break this year and instead predicted crowd levels of 7-9 during what was probably the slowest week out of all of March/April (but to their credit at least their honest and report openly that they stunk, lol!):
https://www.easywdw.com/easy/blog/disney-world-easter-week-magic-kingdom-morning-touring-plan/
This post is the famous November 2014 "touring plans takedown":
https://www.easywdw.com/easy/blog/t...world-wait-times-and-a-touringplans-takedown/ with a great amount of detail about just how wrong they can be.
One of these articles talks about how they are still using data from 2011, 2012, 2014 (yeah, wait time data from before FP+ even existed)...MORE data does not always mean BETTER data people! LOL!