My first reaction upon seeing the article, was to figure out how I can see these paintings in person, and seems you cannot anymore, they don't accept visitor requests unless you have a scientific/research purpose which I don't :/
So this reproduction you're talking about, it's the "Neocueva" from Museo Nacional y Centro de Investigación de Altamira I suppose? I guess it'll serve as a better than nothing, but similar to you, I'm really skeptical it'd be the same for me. Just being aware it's a reproduction I feel like kind of defeats the purpose. I want to feel the spirits of my ancestors when I'm there.
Seems there are more caves with paintings though, another one is Cueva de El Castillo at Monte Castillo, Puente Viesgo, Cantabria. Anyone here from HN that visited those caves before and could share their experience?
France has a few like the Lascaux caves, and I really remember my time going fondly. But I think they also had to move to a replica because of possible damage to the art from so much human breathing or similar?
It's hard to find an original one that hasn't already gone through this cycle unfortunately. Maybe ones with booked tours at invitation only fare better?