Wizards is not trying to turn Magic into a better competitive game, they are trying to turn Magic into a more marketable property to sell products.
It may seem obvious when stated like that, but I think it's worth pointing out. After all, what does "success" mean in this context? A better, more competitive, more skillful game? Or making more money by promoting the unregulated gambling at the core of Magic's bussiness model? I feel that the article, like most articles on the subject, accepts the idea that success means popularity, good metrics and money. And, hey, for Hasbro and the consumeristic mindset that dominates gaming that's probably true.
Let's be honest, Hasbro will always put the idea of profit over any concern for quality. They are heavy on cost-cutting and will rather risk the health of their games than spend a bit more to deliver a quality product. Cutting down on minor expenses like event coverage is a good example, but it goes well beyond Magic. In the age of 100$ boardgames and unnecessary miniatures, Hasbro boardgames stick out for their awful component quality. And like cutting coverage, it was not a mistake, they really thought that printing Roborally on small pieces of toilet paper was a the best bussiness decision.
I also can't help but think that all this talk about how the current pros are not the image Wizards wants for Magic is a thinly veiled attack on actual people for not looking marketable. As in, they are too male, too nerdy, too poorly-looking and too old to sell products to Magic's target audience. Let's be honest, the 36-year old Luis Scott Vargas is not the kind of person a marketing team would use to sell a product. If they could, they would exclusively use a demographically relevant group of attractive tweens.