The way affliction AoE works is rather unique imo.. and that is a good thing.
setting four or five seeds and then causing a chain reaction is great, its just the way the detonation mechanism work is rather tough to work with.. having to set all the seeds, then focusing one seeded target for a cast or two is more time without AoE damage, the way around it I think is letting FF detonate the seed off a target, thus starting the chain.
This way we'll still have the unique way affliction AoE works, but at the same time don't really have to focus a single target for a couple of a casts in an AoE environment.