This bug is not only those specific backports; it's about a Kubuntu policy.
These packages must be maintained and backported following Kubuntu Stable and Kubuntu Backports policies, not Ubuntu's. That means: akonadi, strigi and soprano must be upgraded, if necessary, when KDE is upgraded in Kubuntu Stable and Kubuntu Backports. The upgrade is, in fact, vital for the success of Kubuntu Backports.
This bug is not only those specific backports; it's about a Kubuntu policy.
These packages must be maintained and backported following Kubuntu Stable and Kubuntu Backports policies, not Ubuntu's. That means: akonadi, strigi and soprano must be upgraded, if necessary, when KDE is upgraded in Kubuntu Stable and Kubuntu Backports. The upgrade is, in fact, vital for the success of Kubuntu Backports.