Yes, you're correct in your assessment.
Why is it? We might be the best to ask this question to Boeing. Why do they not even reply to an invitation to appear before this committee, for instance?
I extended an offer of technical help to them. I gave them lots of ideas. I even proposed a couple of design changes that could have vastly improved this aircraft. They're not collaborating with the Canadian government or this committee, so they will do so much less with an engineer, I guess.