UV light to combat fungal diseases in vines

Is this organic?

Seriously, it sounds very interesting.

https://www.wine-business-international.com/wine/news/promising-new-treatment-against-fungal-diseases

My concern here is that using uv light, which is a mutagen, on long lived vines would cause any number of mutations over time. I can see it for annual plants like strawberries but I think the longterm impact on vines would be severe if used with any regularity.