Just guessing, but I'm sure they get paid very well and receive promises from their companies that everything will be done ethically, nothing rushed, etc. We've seen now that OpenAI and Microsoft and Google care more about the business case rather than doing things ethically and carefully.
If a whistleblower for these companies came out and said "For the last decade advanced research has been conducted on extraordinarily big LLMs and they won't even give the public a clue of what it is and how it works" you would get a combination of people that a) don't care and b) vilify the companies for not being open and having some demonstration of this secret super power.
"why can't joe-schmo get his hands on this technology", "how can we trust something we can't see and use", etc.
A lot of the capabilities of these models are emerging as people discover them. I truly don't believe you can make everyone happy with this tech, but isn't it better than the general public can at least explore it?
Do people think that nobody was ever going to try to improve on transformers with more compute, more data, and more parameters? We knew splitting an atom was going to cause a big boom.... thats not really how this tech emerged.
