I'm A Banana
Potassium-Rich
I would like to chime in a moment.
Businesses do not try and try again to obtain certain goals. I am a business owner and I can tell you that you want to minimize your mistakes, especially ones that you might have learned before. An author trying his hand at being a writer is not the same as a major corporation continuing to take that same risk over and over. The problem with a product like D&D being in the hands of a corporate giant is they would drop the brand in a heartbeat if it continues to fail and reach that expected, and sometimes unrealistic goal. Saying a company should keep trying until they go out of business is absurd.
D&D's not in much danger of going out of business from trying this stuff. In fact, it's possible that D&D's brand is of more value than D&D's TTRPG specifically (given the big "diaspora" that doesn't actively play but fondly regards Gygax's creation), and if so, it makes sense to try to diversify the brand -- if you've maxed out one revenue stream, it's time to explore others. Get the former players to buy a movie ticket or a novel.
Also, past failures are necessary for future success. Iteration -- improving on past processes to avoid previous mistakes -- is the way quality work is produced. It's only a problem if you repeat the same mistakes -- in D&D's case, the mistakes have pretty typically been mismanagement from the outset leading to low-quality product.
If they can stop that, they can get better.