(Expanding on other answers, but this won't nicely fit in a comment:)
It's worth noting that many manufacturers - Nissan comes to mind, I think Honda as well - specifically say to never perform an "engine flush." There are a number of documented cases of these flushes causing engine failure.
On higher mileage motors, the flush can loosen up debris which can then block oil passages, gum up the oil pump, etc. (My G35 threw a rod less than a thousand miles after having it flushed. I read about all the caveats a little too late.) On a 2017 model - I'm assuming relatively low mileage - I doubt that would be an issue, but on a low-mileage engine it also wouldn't be necessary.
To reiterate: if the manufacturer says semi-synthetic, do it, or full synthetic. There's no reason to go with 100% dino oil other than to save $100/year on oil changes. Considering you just paid for a brand new car, it seems silly to shorten its life for such a small price difference.