Posted it here:
http://us.battle.net/wow/en/forum/to...9?page=65#1294
And it definitely seems like a bug simply because they seemingly very intentionally disabled that synergy back when they initially made the change to lesser fragments. In addition, while they like synergies between talents, they don't seem to be quite as inclined to have
artifact traits synergize specifically with certain talents. This makes sense, too, since the overall design calls for us to eventually have all of the artifact traits, so having traits that significantly empower only specific talents makes that particular talent either overpowered with the synergy, or woefully underpowered without it. It doesn't seem like Blizzard's style to me to allow an artifact trait to dictate a talent build decision.
That tier itself is very obviously based explicitly on different ways of generating fury, with some additional side effects (Prepared gives you a bit more mobility, Demon Blades gives you open GCDs for utility stuff and a differing playstyle, and Demonic Appetite gives you some minor periodic healing). It doesn't seem appropriate for Demonic Appetite to also reduce the effective CD lengths of Eye Beam and Chaos Nova,
especially when that occurring relies on an artifact trait. I still stand by my presumption that it's a bug.