I found this article seems to give a good summary of what happened:
www.businessinsider.com/cost-culture-clash-50bn-deal-france-lost-to-us-uk-2021-9And shows the major hypocrisy of the French authorities to feign discovering the issues at the last second.
- nearly 200% budget overruns (from 36 to an estimated final 90 billions). We also have these issues on nuclear reactors construction.
- delays
- arrogance: unilaterally deciding to reduce the number of OZ jobs
- attitude: If had arrived systematically 15 minutes late for meetings at my Job, I would not have lasted 5 years...
This draws a familiar picture of arms manufacturers being used to do want they want because contracts are decided politically, and they feel entitled to business practices that would be unthinkable in a competitive world.
The only fault I can find on the OZ side is being surprised that the French economy stops in August, or workers need healthy decent lunch breaks. It would be like not anticipating that China stops for their new year holidays. Workers around the world need decent vacations and meals!