I was at Disney World over the Christmas holiday last year and overheard a frustrated dad from the UK complain that his family had been at MK all day and had only ridden like 3 rides cause the lines were so long. A cast member tried to explain FP+ but I think he was just over it all by then. To come all the way from the UK and not have researched or planned out park days was heartbreaking to hear. Meanwhile, my family and I hit up just about every attraction in the 2 days we spent at MK thanks to planning and using FP+ early in the day.
I'd personally replace "heartbreaking" with "mind boggling stupidity".
Because the way I see it is:
There are websites and blogs and entire guidebooks dedicated to Disneyworld. My research method for Disney is exactly the same as my methods for a trip to Paris, or Pompeii, or Washington DC. Except the Dis actually kind of stresses me out when I'm planning because I tend to second guess myself too much. But this British family lives in Europe, has access to world famous museums and historic sites that, guess what, require planning to visit. There are crowds and lines everywhere. Maybe one could argue that a family from rural Texas who rarely travels outside of Texas would be caught off guard by the amount of planning. I don't know. I wouldn't, because they probably have internet access and they can go to Barnes and Noble. But international visitors from Europe, nope. They just chose not to plan, and had a really frustrating time. Hopefully that was their first day, one of many, and they got the chance to turn it around. Everyone screws up sometimes. I went to Florence on a whim, and for the first few hours was kind of disappointed because the lines were SO long. But then I bought a museum pass, researched that night, and made the next day count.
Plus, it isn't like WDW doesn't make the information available and it's not like it's hard to find touring information on line. In fact- the trip I'm planning right now for Japan? I can actually find more reviews and trip reports for TDL and DisneySea in English that I can for a lot of Tokyo attractions. It's not that there is a shortage of Japanese tourist information in English. It's just that the Disney parks are something that a huge number of American tourists hit and they all write about it. And that is nothing compared to the huge number of resources out there for WDW.
Anyway: You can't fix stupid. I've got some sympathy for the people who make mistakes planning, such as underestimate how long it takes to park hop, or how expenses can pile up, or not taking to account how the weather will impact their touring style. But I don't have any sympathy for people who don't bother to do any research at all on a trip that is probably costing them thousands of dollars.