They sold their company at a very good price, much higher than its actual worth. That’s hardly a dumb business decision. They will also have a good track record on management, given how much better twitter were under their control.
Yeah, I get that, but in doing so destroyed a thing that lots of people found value in. So yeah, they made more money than the thing was worth, great business decision, but I'm not willing to award "this nice thing is worth more as scrap than it is on its own right now" as being called "smart".