configure -skip qtdeclarative fails

Qt 6's configure script does support the -skip argument, but it seems many combinations are not covered:

configure -skip qtdeclarative
[...]
CMake Error at qtquickcontrols2/CMakeLists.txt:18 (find_package):
  Found package configuration file:

    C:/dev/qt/dev/cmake-test/qtbase/lib/cmake/Qt6/Qt6Config.cmake

  but it set Qt6_FOUND to FALSE so package "Qt6" is considered to be NOT
  FOUND.  Reason given by package:

  Failed to find Qt component "Qml" config file at ""

  Failed to find Qt component "Quick" config file at ""

There is logic in qt5/CMakeLists.txt that seems to try to handle unmet dependencies (see logic after # Check for unmet dependencies. Anyhow, for some reason that is not triggered here. Also the logic seems to try to bail out for unmet dependencies, while in Qt 5 leaf-modules that depend on disabled modules where just skipped.