That was probably because Gridania's 'problems' were mostly supernatural/metaphysical in form (the whole greenwrath/woodsin thing with the elementals), while Ul'dah's were mostly political (save for that whole raising the dead thing with Warburton) and thus made for much easier implementation (and thus is more believable).
It's also far easier to craft narratives around familiar concepts like political corruptions and conspiracies when it's just dealing withhumanspoken-led societies and not a magocracy dictated by a race of bad-tempered aetheric faeries who are nature personified.
As for 4.2, new info is up on the Lodestone - looks like some ideas from FFXI are now sneaking in. Besides Byakko being the new trial, none other than Tenzen from Chains of Promathia now has a Hydaelyn counterpart. If it turns out he has a katana with the power of a Primal inside it (*cough* Phoenix *cough cough*) I'll eat my Curtana.
Also, on the patch artwork, who is that bloke standing next to Cid? I recognize Biggs, Wedge and Jessie, but that guy with the shades I just can't place.