And Adri, as a fellow potterhead, while I KINDA agree with you, SOME creative license HAS to be taken to make sense in a theme park. It's an alternate universe afterall.
Hogsmeade isn't that close to Hogwarts but it makes sense putting them a hit closer together in a theme park since you don't have that much space.
Also the basic plot of the ride/experience of the land (I dont think it's a spoiler) is that muggles are now for some reason invited to take tours of Hogwarts....from the book or movie stand point, this wouldnt EVER make sense unless yoy dive into some fan fictin world, but there are tiny things that are added to justify the experience cuz it IS a theme park afterall. I mean, there's a roller coaster in Hagrid's back yard....
Regarding Ollivander, he almost died in the books, and eventually will have died of old age anyway, wizards are mortal. Wizards and witches still would always need wands, so it in my opinion definitely makes sense to have a branch of Ollivanders in Hogsmeade. Also comvenient for the kids if they ever break their wands at school
Also, Wizards and Witches are all over the world and all have wands. They dont all travel to London/Diagon Alley to get a wand, each country has their own Wizarding worlds. Ollivander isnt the only wand maker is my point basically.
So small creative licenses that can make sense in the larger scope of things (especially in a theme park) make sense. Like im sure that the future Diagon Alley entrance wont be exclusively only through a tiny brick portal just from a logistics point, even if itsnt entirely accurate
But something as random and HUGE as Gringotts plopped behind Hogwarts is pushing it and would piss me off haha.