I've just received an email answer from Marc Dillon and can ensure you that they are reacting to the critic of our userbase quite seriously.

It was a big surprise for me to see Marc answer me directly which definitely motivates me enough to continue working with sailfish and jolla in general.

Nonetheless I'm pulling my app from Harbour for the moment until Jolla opens up a bit. This means better kernel source publishing and more opensourcing of Sailfish core components. At the moment Silica qml libs and all required libs for running apps build with the sdk would be enough. I don't need the sources of every sailfish app like (musicplayer and so on)