The more I saw the "So What" slide after each deficiency exposed, the more I saw it as subverting the whole presentation. Yes, there are problems, but it appear

The more I saw the "So What" slide after each deficiency exposed, the more I saw it as subverting the whole presentation. Yes, there are problems, but it appears that didn't prevent UNIX&Linux from persisting and succeeding in many forms of computing. The presenter curiously forgot to mention "worse is better" principle.