A software engineers sexuality should have nothing to do with his/her work. It's like google asking people to vote for obama because they want to attract and keep black engineers. Bullshit, that's right.
Also, my sexuality SHOULD have nothing to do with my work, but if I were affected adversely by this or other similar discriminatory nonsense, it would most likely affect my work. I daresay the same would apply to anyone regardless of sexuality.
Prop 8 is about more than just marriage, it's about what comes with marriage.
- Health care
- Immigration rights
So, yeah, it shouldn't matter, but it does.
I guess that this provides the cover for Google to discuss these issues in an official channel.