This all boils down to the fact that "first level management", and most any management doesnt know their employees. Instead of being part of the actual day to day planning and development, things like SMART pops up. If managers were to spend more time with the guys who does the actual work, none of this would be needed.
Personally, I prefer working in an agile environment where it is obvious who of the developers performs in terms of productivity and quality awareness. A true agile approach requires that not only developers, but designers, testers, customers and product managers are included in the process. This naturally leads to better insights from the managers point of view.