>The reason is that web standards developed and now include a video standard. Microsoft
>is more supporting to web standards now than ever before.
>
>Additionally, there are many platforms that no longer support browser plugins. iPad, and
>WindowsRT come to mind. Also, with phones and other small portable devices, loading
>additional things like Silverlight is getting less likely.
The actual reason relates to the control Microsoft wishes to exert on its users, developers, and corporate citizens. There are methods to more easily control access to content than even the high-end DRM in Silverlight. It comes from incorporating DRM throughout the entire ecosystem, such as the from operating system and drivers on up.
It's time for everyone to begin switching to Linux.
Here's how to leave Redmond, WA in 24 hours. A little dated, but still will get you started:
http://www.tgdaily.com/trendwatch-features/32967-tg-daily-special-leaving-redmond-wa-in-24-hours