I feel like the headline is somehow meaningless. You can't put those words together and construct something that makes sense. I don't think anxiety of any kind would be considered a luxury.
Further analysis gets even more muddled, because while anxiety in itself can be challenging for people, I don't think you would want to define that as the pressing problem here. The authors know that, so they're trying to get cute, but it ends up creating a situation where you don't know what they're talking about because they're using words in misleading ways.