As Phantasm said, I was convinced that it remained Brassavola
for registration purposes ( as Miltoniopsis
Untill I see any notification from them or untill a see more changes I would presume to be ok to continue with the same rules.
I have seen some name changing in that database (in Burrageara
) that was reversed in a short time.
What, for us, is more important is the identification of the plants, name chances don't affect cultivation or beauty
So, for me, it is not that important on the short run.
But if you register a cross, you must obey their rules, whatever they are at that time...