They're saying that ~80% of OpenAI employees were determined to follow Sam to Microsoft and continue their work on GPT at Microsoft. They're saying this actually signals stability, as the majority of makers were determined to follow a leader to continue making the thing they were making, just in a different house. They're saying that while OpenAI had some internal tussling, the actual technology will see progress under whatever regime and whatever name they can continue creating the technology with/as.

At the end of the day, when you're using a good or service, are you getting into bed with the good/service? Or the company who makes it? If you've been buying pies from Anne's Bakery down the street, and you really like those pies, and find out that the person who made the pies started baking them at Joe's Diner instead, and Joe's Diner is just as far from your house and the pies cost about the same, you're probably going to go to Joe's Diner to get yourself some apple pie. You're probably not going to just start eating inferior pies, you picked these ones for a reason.