I think it should be on the dealer to point those things out, not necessarily do it for them... unless it's a service fee. I disagree with ST Guy's stance of "That’s for the buyer to do. And if they are too stupid to do those things, it’s on the buyer, not the seller." I don't think it's (always, possibly not even "mostly") stupidity... it's usually ignorance. IMO, some/much of that ignorance is due MSF/CMSP not even covering a lot of areas important to day-to-day riding, like basic suspension characteristics (or riding in traffic/freeways). I think it's crazy that we, as a nation, have so many world-class/world-leading laws around safety in various aspects of life or work but we have (essentally) 3rd-world requirements around driver/rider training and certification for the daily activity we're most likely to injure/kill ourselves or others while performing (even more so when considering that only ~15 hours of group training are required to get permitted/licensed to legally go buy a H2R, Panigale, R1, etc as one's first bike)
But I digress.... I am torn between seeing both sides:
1) The business needs to limit its liability, so at minimum, all bikes should be set to the same factory-provided specs/settings. If the new owner is riding away on it, rather than having it transported, I think some of that liability should extend to making sure the customer is AT LEAST informed about what's needed to reasonably-dial-in their bike before leaving, especially for riders that deviate from the default physical assumptions (Which I believe is typically around ~155lbs and ~5'10)
1a) A particularly light/heavy and\or tall/short rider might be at risk on their ride home if the bike isn't dialed in.
2b) My 701 Sumo was setup borderline dangerously, for me, when I bought it - super prone to headshake. I traveled to San Diego to buy it; if I'd ridden it home, rather than hauled it, there's a reasonable chance I'd had at least one tank-slapper by the time I got home. But I was experienced enough to know better than to ride a brand new bike that far the day I got it (and without the tools to make all the adjustment)
2) There are too few legal/training guardrails for new(ish) riders buying and riding off with too much bike. That said, it's not necessarily the dealership's job to talk an 18y/o first time rider out of buying a 1000cc rocket.
2a) I do think that dealers should have a moral imperative to (roughly) gauge the skill of a customer and, if nothing else, inform them of the risks of jumping straight to the top of the (performance) line models if they've never ridden something with even half the power.
2b) I don't think the dealer should be responsible for the customer's decision AFTER they've informed them (in simple terms) of the relative risk of a big, fast bike with suspension setup for some built very different from them... especially if the person's experience amounts to passing the MSF/CMSP.
3) Given the above, I think it's a very good business practice to at least point out the settings/adjustments that're important to a given bike's handling and ergonomics. If legislation is the answer, I think;
3a) Riders should be required to have AT LEAST as much moto-specific training/education as autos. Both should be greatly expanded from what we have currently - we should strive to be more like Switzerland than our current training requirements of, "Can you read that sign over there and can you fog a mirror?"
3b) Dealers should be required to have documentation of informed consent. Basically a form signed by the customer(s) that says, "We have informed the customer of a, b, c, ..., z details regard the safe operation of their new bike". This way, at least the otherwise ignorant/stupid rider can't claim ignorance, and had the opportunity to either request paid setup or have the bike hauled home/away so they can safely learn to ride it before hopping on the freeway and creating a potential hazard to the rest of us.
/soapbox