Those companies wouldn't know too much about Google's contribution if it wasn't constantly brought up. And if the attitude was slightly less biased against Google, it certainly shouldn't have been as news-worthy as it was. At the very least, the depth of the of discussion about Google in particular rather than non-compliance or non-conformity IN GENERAL seemed quite unbalanced. We picked a vendor a day, provide some analysis of their contributions, and easily come up with similar pros and cons of their interaction with the community.
Anyway, if other vendors' compliance is basically only motivated by their competitors adherence to open source philosophies, well, then the whole thing is just a house of cards isn't it?