You're quite right - maxillary surgery is where things so often go wrong aesthetically even as it's the safest surgery in terms of nerve damage. WRT happy patients just moving on... Have a look at the Facebook group. It's full of results. Many happy people, yet so many look off - cants, misaligned midlines, tooth show, asymmetry, teeth not quite coming together, yet they are happy. (I do think the Stockholm effect wears off after some time for many.) Maybe the surgeon doesn't matter all that much and jaw surgery is just a crap shoot.