I must admit I was a bit skeptical when I read about it, and I was more than a bit skeptical when I perceived the trepidation about this new enterprise by Facebook and friends. I'm not anything close to an expert on cryptos, I wouldn't mind being called ignorant, but it looks to me like the idea of Facebook making an entrance with a centralized currency goes against everything we believe in, conceptually.
Now I'm very curious to know why you think this currency is already doomed. I would think that where Facebook goes, people follow, much like sheep. I'll read the article you've linked, as soon as I have a bit of free time.