Alternative hypothesis formation retrograde planets

http://www.space.com/scienceastronomy/060213_backards.html
Possible?

Not sure how you would explain why 80% of hot Jupiters are significantly inclined. It's not like these gas giants are within a few degrees of -90° or 90°, their inclinations seem to be scattered everywhere.

I would suspect systems with retrograde and prograde planets would be more stable due to briefer planet conjunctions.

Here's the official article
http://iopscience.iop.org/0004-637X/640/2/842?fromSearchPage=true
interesting exist others examples of such dust disks? Search by keyword "Counterrotating Protostellar Accretion Disk" gives nothing.

In addition to the solar system is also a strong example of a retrograde orbit - the satellite of Neptune Triton. There are versions - originally on the formation of such an orbit, or the seizure of the Kuiper belt.