@suitcaseman You stated what was said and written (facts) followed by your interpretation "No surprise there but Jetbird seem determined not to give up." (no facts, I believe).
In my opinion it is just what managers say if hyped project dreams shatter to pieces. The things he said save the faces of both project partners, it's just "execu speech" for "over and out". Have been working for aircraft manufacturers, learned a bit about that kind of wording in similar situations.
So I thought you would haven taken the words from Embraer's VP a little bit too literally. But this is only my interpretation, no fact.
So, if you say you are not enthusiatic I have no reason to doubt that, of course!
Sorry for misunderstanding you.