Re: Why the delay?
"extraction from this particular mire is non-trivial"
1. Boeing prepare, at their own cost, a second capsule to standards in which two senior Boeing bigwigs, say chairman & head of space division are prepared to travel.
2. Second capsule is sent up crewed by the bigwigs "as a safety demonstration".
3. On arrival bigwigs are told it's the original crew members who get to go back on the second capsule. They can either go in the original or have Boeing prepare and launch a third at their own cost to get them back. Or just hang on for a free trip to the South Pacific.
4. Boeing treat it as a learning opportunity about the true savings of cutting corners versus getting it right first time.