On one hand, I think that information should be available to the technological lowest common denominator. I hate apps that should be websites. I hate having my browser use 100% of my CPU for 30 seconds while trying to render a page with just 300 words of actual text content.
On the other hand, I work on web applications and I want to be able to create rich interactions using the best tools available. So I constantly wish I could require all my users to conform to some pretty steep minimum requirements.
I guess it comes down to appropriateness. There is a place for rich applications and there is a place for accessible content.