Funny, yeah. And probably inviting some nasty letters from Specialized's legal department (not that they'd have grounds but its never stopped them).
I'd echo the build comments above. My spacer rubbed in the front and removed some paint, no real worry.
And yeah, the seatpost can creak in a number of areas. You found one. The rear barrel nut can also creak where it rubs against the cradle.
Other than that, and the usual brake niggles with unfaced mounts, it's all pretty normal.
FWIW, I think the spec of 15nm on the thru axles is a bit much.
The other complaint, which you're avoiding by not using the clone bars, is that the computer mounts are made of cheese and it seems that a bunch have broken. I use a magcad and a Bolt, so wouldn't know.
I'm curious about the post as well as I'd like to use a hy zero.