Forgive me if I'm wrong, but surely the stance on ramping in the PA has not changed due to the statements by WDP and Planet.
WDP and Planet made their statements because they are worried about liability due to the fact that the millennium rules do not specifically allow ramping, and there is a large amount of uncertainty as to whether or not it actually is allowed, and if somebody were to get hurt, who would be liable. WDP and Planet can now go into any actions resulting from an injury due to ramping in the Millennium with a statement on record that they advised their users not to use ramping modes in the Millennium Series. Therefore they cannot be held liable.
As for the D7s, surely they can just state that their rules either allow or disallow ramping (depending on what Dave wants to do/what Daves insurers will let him do).
Or am I oversimplifying the statements from WDP and Planet?