It does look like FMV, but spots similar to that can also be caused by the mite vector. FMV can't spread from plant to plant by itself, it needs the mite, Aceria ficus, to infect new trees. So that is what you should be worried about the most, because they also amplify infections by making the virus virtually systemic. Trees can often outgrow the virus enough for symptoms to fade away (like that tree seems to have done) but if the mite is there they will move it right back into all the buds before it has the chance. It is really a problem if you want to make more plants, because cuttings with every bud virused won't grow consistently.
If those are the only leaves with spots or other deformity I'd say that is mild virus symptoms and not the mite. If you live in an area where the mite already inhabits, and there are wild fig trees in the immediate area that could spread the mites to your trees by wind or birds then having plants that are symptom free and less likely to transmit viruses to the others sounds like a good idea to me. Diligence will be the best protection for your trees in that case though, because the mites that blow in could have come from an infected tree. At any rate I hope that gives you enough info to make a decision.