Well it IS controversial among many X-men comic readers overall, with opinions divided into many different perspectives.
Some didn't like (or downright hated) it from the start, some loved it at first but became negative or disapointed over time, some started negative but became somewhat interested over time, some loved it and still do and then there are those who are on seveal different spectrums of opinions over it, but don't have any hopes for it because the past 22 years of mismanagement of the X-men comics has made them jaded.
And that's just what we can gather from online opinions which are notoriously foggy in terms of what they indicate about the larger consumer base of a product.
Not to forget that the modern X-men comic fanbase or readership (yes those two aren't necessary the same set of people) is apparently a rather small and non-indicative group regarding the taste of what the wider fanbase of X-men movies, cartoons, toys and video games will like, because the modern comics just aren't the core of the X-men franchise anymore.
Together with the current era being untested in terms of longterm opinion or how people will feel about it looking back, i consider it the best move to currently sidestep and avoid it for animated adaptions.
Once it has run it's course, it would be a good idea to look back and see what worked, which could then be distilled into an adapation to the screen.
The risk is simply too big that the viewership will collectivley go "The hell is that? That's not X-men." and will go back to watching Arcane Season 2, the new Dark Wing Duck or a hypothetical faithfull reboot of Gargoyles instead.