The thing I remembered most from that launch was when Sundar Pichai walked on stage of this massive product launch, in front of the entire gaming industry filled with skeptics, and the first words out of his mouth were "I'll admit, I'm not much of a gamer".
In other words, "I have no clue about the buying & playing habits of my target market." With subtext of the launch & rollout then being "And either I ignored the advice of those who did know or nobody bothered to tell me".
"Remember when Google compared Stadia with the Powerglove, Atari ET and the Dreamcast?"