If it matters, kde-sig does not generally use autokarma for larger updates. We greatly prefer to closely review all feeeback to allow us to decide what is best. I set a generally unreasonable value for unstable karma to avoid the possibility of this update being set to obsolete without our diligent input and review first.
kde-sig understands and accepts that private api is an issue, and that all fedora software that uses private api has been rebuilt and included in this update (save one, that's still FTBFS).
Qt's private api is not something we can support, so if third party software uses those, it's (mostly) on them and not (primarily) our responsibility.