As someone who's never read the books, watched the movies, nor cares about the accuracy of Phase 2 in regards to the books/movies, I find it entertaining to read pages upon pages of Potter purists squabbling over minor details. The general public, like myself who lack knowledge of the Potter universe, will be so wrapped up in the environment of this new area, rides, etc., that the accuracy or inaccuracy of certain things won't even be noticed.