I mean, I'm not sure how well this particular case will prove that point. They are a publisher and they've (at least so far) insisted that they will rehire and honour existing contracts. I'm not an expert in the field but I don't see this hugely impacting any upcoming games' quality.
"We had to rehire our talented employees to continue making good games" would seemingly make the point very strongly that the workers bring value, not the owner?
This is the equivalent of a salesperson leaving the company because their branch was getting made redundant. And the parent company said that all former customers will know who to send emails to imminently (basically the other branch). So basically Michael Scott made a big deal about leaving and everyone was immediately told to just email Jim and Dwight instead.
Time will tell what happens to The 25 People Formerly Known As API. But considering that publishing inherently requires a large source of cash...
If this team reformed under a new brand they would have the proven track record and clout in the industry to score a lot of funding money - assuming they didn't just want to self-fund on loan (and a bank would likely be pretty receptive to that).
All the value (outside of the IP held by the company) is in the people that resigned. This is an excellent move and I hope more employees feel empowered to make moves like this to ensure an equitable share in decision making and revenue distribution.
They were a publisher, not a game studio. They will not be able to work as if nothing changed because they will not have the same contracts to work with.