Agreed.Nacelles in the ENT and SNW/TOS eras are clearly descended from the tiny nacelles on Zefram Cochrane's Phoenix, so the nacelles are largely Terracentric.
One aspect of the world-building exercises that ENT engaged in, a part that it got right, was Vulcan's technological stinginess, which required humans to develop their warp-five starship on their own. Coupled with the UESPA references in early TOS, the premise that the nacelles of the NCC-1701 belong to the same lineage as the Phoenix and NX-01 and that these are largely human designs, even all the way into TOS, meshes perfectly. Add a helping of Tyler's remark in "The Cage" about the time barrier being broken for good effect that the design keeps getting betterer and betterer.