Yes, because before you go on a trip somewhere, you should do research about it and get the names of attractions, individual theme parks, etc. correct. Or, while you are there, you can at least be observant enough to notice what the item in question is called. Obviously there are some inconsequential things that you can let pass (i.e. those that think that Walt Disney World is located in the city of Orlando, instead of Lake Buena Vista and Bay Lake), but people are too willing to be naive and unobservant.
Admittedly, I still refer to Disney's Hollywood Studios as MGM Studios for reasons of nostalgia. Also, I never actually say the "Disney's" part of the name because I believe it is redundant.
When I am unsure of something or confused by name variation, I simply look up the correct information because the last thing that I want to be is one of those people who go around saying how they had fun at "Magic Mountain" or "at that park with all the countries."
...But then again, we all make mistakes.
