Immediately below the statistics (which seemed to me to be fishy because they showed Chrome to have a 3% usage!), the developers of the website explicitly mention
W3Schools is a website for people with an interest for web technologies. These people are more interested in using alternative browsers than the average user. The average user tends to use Internet Explorer, since it comes preinstalled with Windows. Most do not seek out other browsers.
These facts indicate that the browser figures above are not 100% realistic. Other web sites have statistics showing that Internet Explorer is used by at least 80% of the users.
And yet, what Dr Shah infers from the site is that IE's usage may even be lesser than 49%. This absolutely confuses me. I am not even sure what the point of such selective representation could be. (I call it selective representation because I am ruling out incompetence and oversight) Is he cheer-leading for Mozilla? Is he anti-Microsoft? Or is he, in some perverse way, trying to argue that Microsoft's monopoly is not as much of a monopoly as it seems to be; that the web and hence the new information economy are wonderfully competitive and informative places and thus the relevance of free markets to the modern world is established.
There have been other such missteps in the past, which seem like subtle nuances at first but are quite shocking mistakes when evaluated to any depth. Using the SJTU ranking to rubbish IITs and thus establish the relevance of GARP- FRM is one such shocker in recent memory.
Dr Shah is a respected professor and wrote large chunks of what is one of the definitive studies and policy recommendations for the Indian financial landscape (Percy MIstry Report). Stuff like this just causes dissonance then.