hrm.. i'dve thunk that maybe if they backed your saddle up they'dve KEPT your bars rotated up to take up some of the ulnar nerve pressure. presuming the FIT was right-- i'd rotate your bars back a bit- but honestly-- it doesn't look particularly UNkosher-- nor that different save for what looks like a dropped saddle and rotated bars.
it takes a bit of time to settle in to new changes in fit, for sure, especially if you're WAY out for a long time-- but wrist pain is a super drag-- i'd rotate your bars first, and see if you can alleviate that as an intermediary step. i know that building up your core is super importante to keeping that at bay- but as i've always been told 'you should be able to ride and just hover your hands over the hoods without affecting the ride of the bike'-- i.e.-- there's not any pressure on the bars from your torso leaning on them- just a freehanging upper body in balance. that does take a bit of core strength to begin with. so if that equation works-- rotate your bars so that you're not super miserable for the time being, and git out and ride. i'm with rowan here-- take it slow, and adjust-- fitters can't see the tiny little parts of fit that you can from the saddle-- so there'll be a little finagling to do with the details.