Unfortunately the document link to export regulations controlling zebra plecs is on the web, which tends to suggest this isn't scaremongering. I don't have the link to hand, but it's available thro some other threads on planetcatfish and others if you look around. Some pretty good sources seem to think it's pretty much the case.
Having had a look at an import list in the last week I can tell you L-46 is still on the list I saw. However the link between being on the list, and ordered, and arriving is tenuous.