Even if I immediately accepted that a music stand would be sufficient for what might be a 20 lb technical manual, when placed on a platform that jostles and moves (as is visible in the video), that completely ignores the second half of what I noted.

I don't think it's overcomplicating an issue to look at a situation that appears to be sub-optimal and search for reasons why what appear to be simple solutions might not actually yield the benefits you would assume, because in real life, often they've been tried, and they don't. It could be Google is purposefully presenting an unrealistic scenario, or it could be that this large multi-billion dollar company hasn't bothered to optimize this integral process in this simple way, but when I see what appears to be an easily fixed problem in an unfamiliar area of expertise I prefer not to immediately assume everyone else that looked at the same scene wasn't capable of seeing what appears obvious to me.