One thing I didn't initially realise was that, while new Thin Air is easier to spread out (for raises and such), using it on a Swiftcast raise is actually less convenient than one might initially think. You either have to use a Lily/Regen/Dot refresh for it, or clip one of the weaves. Since both Swiftcast and new Thin Air only apply to 1 GCD,
Glare -> Swiftcast -> Glare -> Thin Air doesn't work, as it consumes the swift before the raise, and
Glare -> Thin Air -> Glare -> Swiftcast also doesn't work, as it consumes the Thin Air before the raise.

I really question the rationale behind this change because it's really difficult to justify. I don't get it.