For DRG and MNK I would suggest a double/trip meld Crit. body over the Corselet. For BRD though, Corselet is still the best body piece since stat caps are ezpz to reach with other pieces. Also, due to Light Shot recast hotfix, the extra TP helps a lot.

Boots are still best for BRD, Eyepatch is best for MNK/DRG for a full Crit. setup, Bracers aren't that great for DRG anymore since you don't need as much ACC, so trip. meld ATK Bracers would be preferable. Caligae for DRG/MNK is still best for Crit. set up...

The pieces are all very good, it's not like they're bad now, or anything. They're just in place so we have a choice between what's dropped and what we're able to have melded. And depending on what sort of set up you want (a lot of people don't necessarily go FULL Crit., for example), you may or may not want some pieces.