HTML5 not all it is claimed to be? (hurlingdesign.com)

Quoting the site:

"The day is March 3rd, 2012. HTML5 is touted as the newest, boldest, and highest achievement in interactivity, blessed for its ability to be cross-browser.

Despite all media sugar coating, we have found that interactivity programming is reduced to almost 1998 levels of interaction when trying to be compliant across all platforms with Javascript/HTML 5/ or open standards."

What does everyone think about this? Has this been your experience?