Your example speaks to my point: there's nothing new, innovative, technically challenging (beyond the norm).
I really don't see what there is to write home about. This article reads as a PR announcement (which is okay) disguised as a technical achievement (which it isn't).
Maybe not the biggest breakthrough ever, but it does fill a gap. Animations like this on the web really weren't possible without either using Flash or SMIL. A completely JavaScript based solution is very welcome.
I think the annoyance is the slightly smug tone of "Look what I invented. Vector animation and keyframes!"
It's a cool implementation but it feels like they are claiming to have broken amazing new ground. To people that don't understand much of the background technology that's exactly how it reads.
