Actually, I believe that "brazilian rosewood" is not related to our prized
brazilian, dalbergia nigra. There are probably at least a dozen totally
different species that are referred to, at least on occasion or in varying
locales, as "brazilian rosewood". Journalists who appear to be getting
their references from Wikipedia seem to be among the worst offenders at
confusing these species.
In many articles on the recent rosewood crackdown I saw the term
jacaranda come up quite frequently. The dalbergia nigra tree may be one
of dozens referred to by some as jacaranda in it's living state, but not all
jacarandas are dalbergia anything. The recent articles must have done
some poor half-effort research on this term, and deduced that the
"brazilian rosewood" that we talk about is commonly used for flooring.
Of course, that would be the jacaranda more often called brazilian
cherry.
Much like the "Brazilian rosewood flooring" (aka Brazilian cherry) referred
to in these other articles, I think the "Brazilian rosewood" in those
perfumes are not a dalbergia species at all.