I have 2 LSU Purple trees from Florida Hills that my wife gave me for my birthday, good girl. The trees were very small, as advertised, they have been slow growing and I have only bought larger trees or grown from cuttings since, because of that slowness in growth.
As to the FMV thing, I don't know, I went through a phase where I was concerned about every sign of rust on leaves, every leaf blotch, every curled leaf, every leaf burned by chemicals or bird crap. I am not sure I even know what true FMV looks like, and as long as the trees grow well and produce figs I really don't care. If my trees have FMV, it was surely imported from trees or cuttings that were imported from friends, forum members, cuttings gathered, Lowe's because my original tree came from a sucker from a tree that had/has none of the symptoms originally or my cuttings from that tree for the last 7 years, that I know of.
The world learned how to live with fever blisters even after we learned it was a disease and had a name other than fever blister, so how important is FMV?
Just my opinion.