I would suck some oil out before the dealer gets the boat and send it to Blackstone labs so you get an independent analysis,
But i don't really trust a dealership
I agree with both, if just to be on the safe side.
With that being said, there are a few things I noticed about your pictures.
Firstly, there's not much in an engine that will fail and leave chips that look like the ones in your pictures in my experience. More on that later....
Secondly, there looks to also be a bit of soft black "gunk" in with the bits of metal.
Thirdly, the bits look to be localized to the left shoulder of the dipstick; at least they do in that one picture.
So, to address point 1, normally when an engine is failing, and you catch it early enough to have no symptoms or abnormal noises, the kind of metal bits in the oil are EXTREMELY fine and look more like the visual equivalent of brain matter swirling around in the oil. Think bits of metal the size of the bits of metal in a newer car's metallic paint (not as big as 60's and 70's over the top metal flake or bassboat metal flake). The bits in your pictures look like drill or thread tapping chips.
At the end of the day, I think the the size of the chips, the black gunk and the knowledge of the oil extraction devices used to change the oil and the sharpness of the edge of the dipstick itself leads me to think that 1: The dipstick tube may have been contaminated by an extractor wand that wasn't wiped down well (source of black gunk and maybe also chips) 2: The burr on the edge of the dipstick may be scraping the inside of the tube and/or inside of block ( determination would be if the bits were magnetic or not). This does not explain the source of the black gunk. Or 3. Combination of 1 and 2.
Either way, I would get the oil tested by an independent facility such as
#Scottintexas mentioned before I let the dealer get their hands on it again.