Chatted with a few folks who aren't following the Epic news -- but they had questions when they saw the headlines about a new Wizarding World. Many still don't realize Diagon Alley exists (or that it's in a separate park). Some were concerned this meant they were getting rid of the original Wizarding World build. Upon explaining the breakdown, a frequent reaction I got was "when did we see Wizarding World Paris...?" followed by "I thought the Ministry of Magic was in London?"
At the end of the day, if the area looks great (and by all accounts it will), this won't necessarily matter... but good to remind ourselves of how the general public sees and reacts to this news, at least anecdotally.
I have had the same reaction from friends an family who are casual/mainstream Harry Potter fans and who have gotten enough info on this EU land to react "Huh? Don't get it."
For folks who don't understand why others are bothered, maybe this helps: imagine watching an exciting action scene in a Mission Impossible movie...but with the entirely wrong movie score, a sad moody dirge. It wouldn't be "as effective" as it is with the original exciting music. Some may argue "Who cares? It's the same scene! You still see all the same action, get over it." Others are disappointed or confused why the entertainment is "off." Nobody is wrong, it's all quite subjective.
Beyond the theme/timeline mix, the name is also potentially confusing. Calling the land "Ministry of Magic" when the "land" is clearly Paris, is arguably unfortunate or limiting. Yes, we see the MoM in the "main" attraction, but there's also a significant magical show that has nothing to do with the Ministry. What will happen when they add another attraction... will it be another attraction unrelated to the Ministry land name?
I do hope any future third attraction or restaurant involves the French MoM to substantiate the land's name. And I would love it if they tied the whole land together in some way, for example an underlying story about how Delores Umbridge's grandparent was part of Le Cirque Arcanus where he/she dabbled with the dark arts and that's what set the direction for the Umbridge family...and maybe there's an artifact he/she left from that era in Paris that Delores needs, like a time-turner. This could be conveyed by queue and restaurant props, window shop displays, old faded posters...like a backstory treasure hunt.
I know that the vast majority of guests wouldn't care or appreciate it (like most Disney Parks fans don't know about the Society of Explorers and Adventurers), but I think there's an upside in having deep Wizarding World fans feeling even better, even more excited about this land and Epic Universe in general. Story continuity and canon are important in deep fan-ships like this. In fact, there's a possibility of turning lemons into lemonade and coming up with a cool, intriguing backstory that makes the entire experience in the land feel like being part of a mysterious discoverable storyline that cleverly bridges the era of Fantastic Beasts to the era of Harry Potter.