Basic knowledge
Manufacturer-based qualifications tell people how good that person is with that particular manufacturer's tools. But those tools are ephemeral to say the least. If I wanted to collaborate with someone who had knowledge I would want to know how far that knowledge extends back in time, and how committed that person was to what they are promoting right now. How deep-seated that knowledge is, and the experience that goes with that knowledge.
It says nothing about the future. When that list becomes superseded, will those people still be recommending the 2016 product-list to their clients? Will anything on that product list still be available in five or six year's time? Looking at the list, what is the earliest product there? I don't think anything more than about five or six years at most.
Look at history. Take Silverlight for example. Where are all the Silverlight developers now? What are they recommending these days?