I think very few of these changes have actually been widely accepted by taxonomists. It's likely the USGS report only got its taxa information from a limited number of sources, likely the newest ones they could find, which aren't necessarily widely accepted. This list was basically taken directly from that report - in spite of the fact that all of these politicians have been informed that the report is biased, unscientific, and extremely poor basis for any legislation.
As far as I'm concerned, retics are still genus Python, and southern Afrocks are still Python sebae natalensis. I am not well-enough informed on anacondas to say any different about being the same species or subspecies. Actually I've yet to even see a photograph of a De Schauensee's or Bolivian anaconda, and know of none in the entire US.