I guess that's the price you pay for deciding to ride the bleeding edge. When HTML5 reaches the Recommendation status perhaps the browser developers will concentrate on supporting it (the standard) rather than speculating on which of their proposed implementations will give "the bigger market share"/"scratch their biggest itch". Until then there will continue to be a lot dog-waving by the tails.
Oh wait... HTML 4 was a different dog, same leg action - but good developers worked with the differences.
Bleeding edge has a great view, but not everyone enjoys it e.g. nothing more annoying than listening to butthurt little boys that insist on riding bikes without seats.