It's more like the web browser war with IE6 winning and no further development between 2001 and 2006 halted the web development. The AJAX technology was added to Firefox in the meantime (2004) so that IE5+ and Firefox supported AJAX and Web 2.0 was born. As W3C XHTML 1 and especially XHTML2 failed, HTML4 was enhanced to HTML5 thanks to the WHATWG.
SVG was well known in early 2000 but only Adobe provided a plugin for IE. No web browser supported SVG.
There was also the SMIL standard that is an replacement to Adobe Flash: http://en.wikipedia.org/wiki/Synchronized_Multimedia_Integra... , http://en.wikipedia.org/wiki/HTML%2BTIME , http://en.wikipedia.org/wiki/XHTML%2BSMIL
As Adobe bought Macromedia and the focus shifted from vector animation to video and 3D. The feature creep with Actionscript 2/3/Flex/3D-API/etc. decreased the stability and quality of Flash. The mobile counterpart FlashLite was always several features behind the desktop version.