While all of that is in some form true, it's completely irrelevant to what I said, and what Dreamhaven has said.
If you're a public company, your boss is the shareholders (or any interest groups or companies controlling a large portion of the shareholders). As such your business decisions can be driven by those needs, and not necessarily what is good for the company long term. You could have an activist shareholder who controls a large portion of the share base who is demanding more MTX added to games to boost short term revenue.
If you're a private company, you can do whatever you want until the money runs out if you're the owner.
Dreamhaven has come out and explicitly said that they want to be in charge of the direction. That only happens if they stay private.