SE, can you fix RDM's aggro?

[Alistaire]

Forgive me for this honest confusion, but for RDM, why swiftcast?

Literally every other spell is a swift cast and if you swiftcast, you don't get dualcast. The only thing I can think of is to get Verraise out slightly faster, and I still don't see why for that.

And I guess before the, "Nothing else to put there" situation, Addle is useful if the boss has any magic damage.

Let's say you start off with say jolt > thunder. Then you swift > aero, then continue your rotation. Use it on cooldown.