Maybe these are really impressive in an immersive 3D type setting, but those videos just look like animations to me. I would not consider these things art.
Even the last one (or her other pieces)? It's basically a traditional painting but in space. You don't think the old masters would have loved to paint their masterpieces in volumes instead of on flat canvas?
I think the fact that it's digital cheapens it. You can use tools to make things exactly pixel perfect, it only takes time.
Obviously there are really talented and creative people doing things digitally that I could probably never do, but to me it's like watching people play a FIFA video game vs watching an actual match.