WASM has been developed mostly outside of google (mozilla mainly) and is actually counter to a lot of the attempts google made to get similar features (e.g. NaCl). It's quite hard to claim google has had undue influence on its development.
precisely what I was thinking...they have their hands in all these standards and most times seem to push the direction. But I will say this.. I'd rather them work on these "open" standards, then go ahead and keep to their own.. so i guess gotta take some bad with the good