This review sounds a bit over the top.
However I can easily believe that MS has (like General Motors and many others) become too big, too bloated, too inbred, too political, too sure that they understand what the customer wants.
Microsoft does not survey their public to find out what's needed and wanted from them in the way of new products. Because they assume the position of being all knowing, all seeing savants, they continually produce products that initially flop in the marketplace.
The know-it-all geniuses could just ask their public to begin with, but no. They know better than the customer. They only perfect a new OS after the marketplace has rejected it repeatedly. What a wasteful way to do basic R&D.