As to your point [7], no need for China to "spread doubts about the performance of French-made Rafale ", I have at this very moment this book on my desk: Le Pouvoir sans visage: Le complexe militaro-industriel [1], written by a Pierre Marion [2], former head of the SDECE/DGSE in the early '80s, where said Pierre Marion does the same thing, i.e. he heavily criticises the Rafale programme and Dassault (the company and the man himself, Serge Dassault)

[1] https://www.amazon.fr/Pouvoir-sans-visage-complexe-militaro-...)

[2] https://en.wikipedia.org/wiki/Pierre_Marion