A typical startup would require the consent of a majority of the investor shares for a sale of all the assets, so there would be investor protection and consent

A typical startup would require the consent of a majority of the investor shares for a sale of all the assets, so there would be investor protection and consent to this type of a transaction. And indeed this article says “Almost all of Sunshine’s investors, who include Norwest Venture Partners, Felicis Partners, and SV Angel, have signed off on the deal, Wired cited the sources as saying.” So the investors think whatever is happening is a fair deal.