Please don't post excerpts from studies without reading the conclusion. This study doesn't conclude what you want it to. The sentece about antioxidants for example is about antioxidants in general and not about whether their consumption in fruit juices has health benefits. The study basically says there's a lack of data to assess the situation.

Here, look at this more recent study that compared different kinds of fruit juices.

https://www.sciencedirect.com/science/article/pii/S2213453024001915

It concludes that fruit juices have less health risks the more they resemble fresh fruit.