I like the report I see, those of Der Michel are always interesting to read I learn a lot of stuff.
But just to give some informations, there are multiples FCOM, multiples revisions of the avionics.
There are also a lot of options company dependant (Like the BTV Autobrake off audio warning speed threshold).
I have in mind the AIRCFT STATUS page that was indicated as wrong in those forums with picture as evidences.
But the AIRCFT STATUS page in the ini version is also correct, just not the same avionics revision.
I'm saying this just to underline that every bug report has to be verified. Ini may have missed stuff, but they also have their own sources for what they do.
And qualify a report can take time, and once qualified, it needs to be prioritized, implemented, tested and released. All of that within an already filled planing as you can imagine.
I still hope to find some fixes as you do, especially on the WASM crashes sides but this is also on Asobo side and some enhancement are planned for SU3 iirc.
PS : I'm not an ini employee and have not any stock in the company.