Wow, as a real estate photographer who uses HDR I'd have to say that that's awful. And my market is right in the Bay Area as well. But it's really all up to the Realtors - they are the ones buying the photography and there is both a lack of skill for the vast majority of real estate photographers and a lack of any clue of what looks good on the part of realtors.
Hey, you think your cousin could go to the realtor and complain to them about how awful the photography was and then point to my website as an example of how it should be done?