The original post was mine. You are correct that overall, posted waits were not that much worse. They were definitely worse by our experiences. Most of the posted 10-30 minute waits the rest of the week were walk-on to 10 minutes, unless there was a cleaning cycle (we suspected waits were highly inflated to account for cleaning cycles).
But today, waits were closer to the posted times more often than not, walkways were more congested, and the snowball effect of longer waits, more congested walkways, areas for stationary eating and drinking being full, was that people were more inclined to break the rules, to be impatient. The cast members seemed far more overwhelmed, and were not correcting people eating and drinking in line. It may not have been a huge difference in wait times (our wait times on average were still better than a typical week in Disney for riding without Fastpasses). But the wait times alone are only part of the story when you also factor in masks and social distancing and Florida heat. We lost places in line from people reading our 6 ft spacing as end of line, because queues stretched out past the usual entrance and crowds were thick. We could not get into line at food carts because crowds, lines extending into walkways. Add the RotR experience, with a family that spent the hour stuck with their masks partly orally the way off, coughing, spreading out to fill the space between us.
And to top it off, the Epcot resorts don't typically have buses running, so when it started to storm, they put up a bus stop on the board, but it was apparently wrong. So dozens of us waited at that bus stop for 40 minutes while empty buses hung around. They told us we were at wrong stop, but we were at the one posted on the board.
Overall, I think they increased capacity without increasing staff to accommodate. The difference between today and Wednesday was night and day. The wait times are only a small part of it.