How everyone in Silicon Valley reacted to this tells me you still have a long way to go before you can justifiably call it an accepting environment.
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You wouldn't realize this, but it's very helpful to people who are closeted or questioning to have real-life examples of gay people they can relate to. I live in a very sports-centric region. I didn't feel safe until Michael Sam came out and I could see that friends and family reacted positively. People around here just plain didn't discuss it before, so people like me had to take a big risk to live an authentic life in the open.
Straight people don't realize how much they reference their sexuality. You probably do it all the time in ways that are subtle and invisible to you. It doesn't make you a bad person. It just means you don't realize how goofy this sounds:
> I think that his sexuality being too boring a topic to be worth commenting on is probably a good indicator.
The message people get is that it's okay to be gay as long as you act reasonably straight or are funny enough to be on TV. Same message being sent to blacks. No problem as long as you act normal aka white.