Kind of in line with the European regulators,
I don't see this "final absorption" of Zomba as any biggie. BMG has effectively "owned" Zomba, Arista, Bad Boy, J and all of the indie labels that they distribute by virtue of that world-wide ability to get the product into the market.
In fact, in preparation for what I believe will be a move by BMG to go public, I see this as a purchase of Zomba initiated by Zomba and not BMG. Until this music distribution company is spun-off from Bertelsman, not much will change in the hierarchy of the five major labels.
Oh, and just to correct that article, for the record, Alicia Keys is signed to Clive's label "J" and Pink is signed to Arista.