There's nothing contradictory to the license, the license is interpreted by debian's legal and FTP Masters as only allowing distribution by the "PHP Group", any package using that license which is not from "PHP group" is thus "non-distributable".
The reality is that the PHP license is a license which exists solely for PHP itself and makes no sense whatsoever for projects which are not PHP, leaving them essentially license-less and thus "all rights reserved".
The reality is that the PHP license is a license which exists solely for PHP itself and makes no sense whatsoever for projects which are not PHP, leaving them essentially license-less and thus "all rights reserved".