Why shouldn't restoring it to "just like new" not be allowed? This reviewer says entering it now is like the medieval builders had just finished it, it's almost like time travel: https://www.theguardian.com/artanddesign/2024/dec/06/notre-d...
I think it all looks great with the exception of white-spectrum LEDs as far as the eye can see; the natural lighting of the past Notre Dame during early morning was special -- maybe it still is , but the white LEDs everywhere make it look 'clinical' to me.
The Notre Dame is a historical building. It's not meant to look like "new".
The same applies to paintings
I obviously haven't visited Notre Dame yet, but when I visited the fully rebuilt Berlin Palace last year I did get an impression of "this place needs to age a couple hundred years before it's done".