Faces data doesn't sync in iCloud Photo Library

While I've been very impressed with how iCloud Photo Library works across multiple devices, I was terribly disappointed to learn that Faces data doesn't sync between Macs. I seeded iCloud Photo Library by importing my 90GB Aperture Library on a Mac mini that I have hosted with one of the Mac mini providers (since that Mac has a fat pipe access to the internet as opposed to my anemic home ADSL connection.)

While all of my Faces data from Aperture is available on _that_ Mac (where I don't need it), it is not available on the MacBook Air that I use on a daily basis.

This Apple support article confirms that the data doesn't sync, but I've discovered that some Faces _data_ does sync; e.g. if I search for a name on my MacBook Air, results are found and categorized as type "Face", but the corresponding Face album obviously isn't there.

Here's to hoping that Apple eventually sync Faces data.