I thought so originally too, but when I thought about their perspective, I realized I would probably sign too. Imagine that your CEO and leadership has led your company to the top of the world, and you're about to get a big payday. Suddenly, without any real explanation, the board kicks out the CEO. The leadership almost all supports the CEO and signs the pledge, including your manager. What would you do at that point? Personally, I'd sign just so I didn't stand out, and stay on good terms with leadership.
The big thing for me is that the board didn't say anything in its defense, and the pledge isn't really binding anyway. I wouldn't actually be sure about supporting the CEO and that would bother me a bit morally, but that doesn't outweigh real world concerns.
The point of no return for the company might have been crossed way before the employees were forced to choose sides. Choose Sam's side and the company lives but only as a bittersweet reminder of its founding principles. Choose the board's side and you might be dooming the company to die an even faster death.
But maybe for further revolutions to happen, it did have to die to be reborn as several new entities. After all, that is how OpenAI itself started - people from different backgrounds coming together to go against the status quo.
What happened over the weekend is a death and rebirth, of the board and the leaderships structure which will definitely ripple throughout the company in the coming days. It just doesn't align perfectly with how you want it to happen.
The big thing for me is that the board didn't say anything in its defense, and the pledge isn't really binding anyway. I wouldn't actually be sure about supporting the CEO and that would bother me a bit morally, but that doesn't outweigh real world concerns.