While the answer given is a bit discouraging, it wasn’t actually my goal to get anything in particular merged or accepted. What I’m interested in is how to communicate about areas where something like github issues are not available, and a mere bug report or feature request seems inadequate.
Perhaps my questions should have been clearer, or not select these examples, or not mention patches or any give any example at all.
I feel the core questions have not been answered:
what would be the preferred avenue of communication from the community to Jolla?
what are requirements from Jolla to consider inclusion?
Some constructive answers to those might have paved a way for closer collaboration, and better quality core components, but alas! it appears it shall not be.