Option-click is pretty much the only trick used for menus, and it's fairly universal across the nearly 80 years of Mac. The incidence of people that would be helped by those graphs, and the people that option-click is pretty high, so this seems like a great combination. It's similar to option-letter for inputting characters not on the keyboard (alt-code on Windows).

Exposing my parents to one more menu item that will never help them, and mostly confuse them and reduce their scanning speed, well, that's really not worth it. Every option has a cost, and different people bear the weight of that cost differently. Some people like having 30 different brands of canned tomatoes to choose from at the grocery store. Others would prefer 2 or even 1, that are more carefully curated. My favorite grocer is like this. It's a tiny store, an eighth the size of a super market or less, but has a better butcher, better basic groceries, and a more extensive selection of rarer ingredients than a Safeway. It just doesn't have an entire aisle of pasta brands. That's not for everyone, but it is for me. The Mac also doesn't have to be for everyone, it for the people it fits, it fits really well.