I have never seen an offset depth in any snap ring application guide for any type of snap ring. Even if one did, the ring isn't guaranteed to be locked into position so any offset preference could be disaster.
That part of the weight is slot. That horizontal line segment should bridge where the two horizontal segments are separated above the pin. I know the pin isn't that wide; that's why I think it's wrong.
In vertical order there are are two large top flats, two smaller slot flats, the top edge of the bushing bore, which is below the two smaller slot flats, and then the top edge of the pin.
Because of the slot, there is not a complete bore where the bushings are set, so there is no horizon line in that gap.
I looked at the old notice - the slot goes all the way through - there should not be material sectioned in the middle. This matches the hidden lines in the overall face view.
Perhaps they need to hire someone with drafting experience.