I think it’s kind of bizarre that all the armchair airplane developers here know how this will end already.
You could, presumably have faith that both the founders and investors have asked themselves the same questions and have come up with an answer that satisfies at least them.
Boom was founded by 3 people, 2 software guys and Joe Wilding (who had actual aerospace development experience). Now it's run by the only remaining software guy. sure there's an impressive staff, 700M invested in the company, but it's nowhere near the required many billions. and even after that there's zero guarantee that they can make money.
You could, presumably have faith that both the founders and investors have asked themselves the same questions and have come up with an answer that satisfies at least them.