I'm familiar with the website you're talking about (TP) - they wrote a blog post about it as well saying basically they're looking and analyzing the park pass availability calendars and their idea of park capacity and that until capacity increases they do not anticipate more than a 5 any day for the forseeable future.
This is going to be the least crowded thanksgiving ever in WDW!!
Also - the only reason they're increasing Epcot crowds that period of time is because that is the beginning of the modified for Covid Festival of the Holidays - which, i'm super excited about.
Hours shifted from 11am to 7pm to 12pm to 8pm so Epcot now opens an hour later but also stays open an hour later. Not too shabby!
I would agree that this is going to be the least crowded Thanksgiving in a long time. We were there last Thanksgiving and few of the last 4 or so.
We just came back from Labor Day weekend/this Tue... historically the least busy holiday with kids freshly back to school. And it was the most busy it’s been since July reopening. Kenny the Pirate has articles documenting this with wait times throughout different times of days. We’ve been charting times since July reopening, every day.
Most days this past week were booked full with Sat and Sun being especially busy, and a big dropoff this Tue. But I’d think Thanksgiving will have longer wait times than what we just experienced. Not saying that’s unbearable. But some people expect 25% capacity to mean 75% less wait times, and that isn’t accounting for several things: The lower park hrs, no FPs, no single rider are more obvious, but boats on Pirates or slow moving Small World filling only 2 rows, for instance, occasional attraction stops for cleaning for 15min (happened to us a lot every day), social spacing with longer queue lines/loops and actual lines moving slower because of social distancing, everyone in front of you stopping to get hand sanitizer at every station and holding up the line, transportation arriving closer to park open and only taking 5-6 groups, and on and on. The 25% turned into somewhere between 67% to 75% of typical Labor Day week wait times, despite lower crowds. The wait times were usually overstated. 75 on Runaway was 45 for us, for instance.
And It was the first time I ever received a congratulatory you’re our first guest to tap greeting, just to be first one, 4 days in a row, in 4 different parks, completely empty park photos, first on my attraction of choice every day. FoP, runaway railroad, and 7D 4-5x per day. Had a great time. But would I consider trading that for a trip with normal crowds, fireworks, parades, not wearing masks... and activities like the candlelight Processional, storytelling, and such, at the same price, probably.
I’m a disney addict, and I’d choose to go this thanksgiving despite the canceled certain holiday experiences. And we’re going to DL in Dec next. But it’s a different experience, some pluses and minuses, like anything. Just my opinion. Hope you guys have a good time.