This is how you dump a story. Everyone's on the way out the door for the weekend. Google will publish something "amazing" on Monday morning to excite everyone to the level that people forget Google sold them out three days prior.
This doesn't make sense to me. The purpose of endorsing something is to be heard by the public, thereby persuading them. You don't deliberately do it when noone is listening. You might as well just not do it.
If they are so proud, surely a banner on Google is appropriate. It's for a good cause after all.